SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "L773:1945 7103 OR L773:0003 3219 "

Sökning: L773:1945 7103 OR L773:0003 3219

  • Resultat 1-50 av 66
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Ganzer, Niels, et al. (författare)
  • Letters From Our Readers
  • 2017
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 87:3, s. 483-484
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Response to: Pain and discomfort following insertion of miniscrews and premolar extractions: A randomized controlled trial. The Angle Orthodontist; 2016;86:891–899. https://dspace.mah.se/handle/2043/21687
  •  
2.
  •  
3.
  • Mohlin, Bengt, 1944, et al. (författare)
  • TMD in relation to malocclusion and orthodontic treatment.
  • 2007
  • Ingår i: The Angle orthodontist. - : The E. H. Angle Education and Research Foundation. - 0003-3219 .- 1945-7103. ; 77:3, s. 542-8
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: The aim of this systematic literature review was to evaluate associations between different malocclusions, orthodontic treatment, and signs and symptoms of temporomandibular disorders (TMD). MATERIALS AND METHODS: This review was part of a project at the Swedish Council on Technology Assessment in Health Care focusing on malocclusion and orthodontic treatment from a health perspective. As a first step, the literature was searched in the Medline and Cochrane Library databases from 1966 to May 2003. A later update was made in January 2005. Human studies in English or in Scandinavian languages were included. RESULTS: Associations between certain malocclusions and TMD were found in some studies, whereas the majority of the reviewed articles failed to identify significant and clinically important associations. TMD could not be correlated to any specific type of malocclusion, and there was no support for the belief that orthodontic treatment may cause TMD. Obvious individual variations in signs and symptoms of TMD over time according to some longitudinal studies further emphasized the difficulty in establishing malocclusion as a significant risk factor for TMD. A considerable reduction in signs and symptoms of TMD between the teenage period and young adulthood has been shown in some recent longitudinal studies. CONCLUSIONS: Associations between specific types of malocclusions and development of significant signs and symptoms of TMD could not be verified. There is still a need for longitudinal studies.
  •  
4.
  • Feldmann, Ingalill, et al. (författare)
  • Reliability of a questionnaire assessing experiences of adolescents in orthodontic treatment
  • 2007
  • Ingår i: Angle orthodontist. - 0003-3219 .- 1945-7103. ; 77:2, s. 311-317
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To evaluate the reliability of a questionnaire that assessed the expectations and experiences of adolescent patients about orthodontic treatment. MATERIALS AND METHODS: The study included two groups of patients: 30 consecutive patients (19 girls and 11 boys, mean age 14.6 years, SD 2.3 years) naive to orthodontic treatment, and 30 consecutive adolescent patients (17 girls and 13 boys, mean age 15.1 years, SD 2.0 years) in active orthodontic treatment with fixed appliances in both jaws. A questionnaire comprising 46 items was developed, based upon focus group interviews and previous established questionnaires. The questionnaire covered the following domains: Treatment motivation; treatment expectations; pain and discomfort from teeth, jaws, and face; functional jaw impairment; and questionnaire validity. Internal consistency as well as temporal stability with the test-retest method was investigated. RESULTS: A majority of the questions exhibited acceptable test-retest reliability, and composite scores yielded excellent reliability for all domains. Internal consistency was acceptable and good face validity was found for all domains. CONCLUSION: The questionnaire can be recommended for use in the assessment of expectations and experiences of orthodontic treatment.
  •  
5.
  • Lindsten, Rune, et al. (författare)
  • Anterior space relations and lower incisor alignment in 9-year-old children born in the 1960s and 1980s
  • 2001
  • Ingår i: Angle orthodontist. - 0003-3219 .- 1945-7103. ; 71:1, s. 36-43
  • Tidskriftsartikel (refereegranskat)abstract
    • The anterior arch spaces and the effect of early loss of deciduous canines have been studied in 2 different cohorts of 9-year-old children. One group of 119 children was from Norway and consisted of 56 girls and 63 boys, and 1 group of 133 children was from Sweden and consisted of 72 girls and 61 boys. Within these cohorts, half of the children were born in the 1960s and half in the 1980s. The 1960s group has been compared with the 1980s group to look for anterior arch changes occurring during this period of time. The children who had lost a lost deciduous canine at the age of 9 years were also compared with the children with all deciduous canines remaining. Groups were compared with analysis of variance. It was found that children with a lost deciduous canine at the age of 9 years belong to a group with less available arch space and are a crowded group when compared with an earlier study. For the girls, this was also associated with larger teeth. Anterior arch space did not differ between the 1960s and the 1980s groups except for the Swedish boys, where there was less available mandibular arch space in the 1980s group. The irregularity index for the 4 mandibular incisors was increased in the 1980s group compared with the 1960s group. This could indicate a secular trend toward an increased prevalence of malocclusion in the present population.
  •  
6.
  • Aljabab, Mhanna A., et al. (författare)
  • Impact of early extraction of the deciduous canine on relief of severe crowding : Does it influence later orthodontic interventions?
  • 2021
  • Ingår i: Angle orthodontist. - : Angle Orthodontists Research and Education Foundation. - 0003-3219 .- 1945-7103. ; 91:6, s. 743-748
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: To explore whether there were any differences in orthodontic treatment need, treatment complexity, treatment time, or the number of visits between a group of children receiving early intervention (extraction of upper and lower deciduous canines) and an age- and condition-matched control group without intervention.Materials and Methods: Patient records and study casts in the late mixed or early permanent dentitions of 46 subjects (20 from the extraction group and 26 from the control group) of an earlier prospective longitudinal study were retrieved. Orthodontic treatment need and complexity were assessed by the index of complexity, outcome, and need (ICON). Statistical calculations were performed by t-test for parametric outcome variables (treatment time, number of visits, and orthodontic treatment need) and Fisher exact test for the categorical variable (tooth extractions).Results: There were no statistically significant differences between the groups in ICON scores of orthodontic treatment need (extraction group, mean score 59.8; control group, mean score 52.8), number of visits (mean of about 15 visits for both groups), or treatment time (extraction group, mean 21.5 months; control group, mean 20.3 months). The extraction of permanent teeth was more prevalent in the deciduous canine extraction group (59%) as compared with the control group (28%); however, this was not statistically significant (P = .07) but showed a tendency toward worsening the crowding and the future need of orthodontic extractions.Conclusions: Early removal of deciduous primary canines will reduce neither the need for later orthodontic treatment nor its complexity, nor will it shorten the treatment time.
  •  
7.
  • Feldmann, Ingalill, et al. (författare)
  • Orthodontic anchorage : a systematic review.
  • 2006
  • Ingår i: Angle Orthod. - 0003-3219 .- 1945-7103. ; 76:3, s. 493-501
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this systematic review was to examine, in an evidence-based way, what kind of orthodontic anchorage systems/applications are evaluated and their effectiveness. A literature survey from the Pub Med and Cochrane databases covering the period from January 1966 to December 2004 was performed. Randomized controlled trials (RCT), prospective and retrospective controlled studies, and clinical trials comparing at least two anchorage situations were included. Two reviewers selected and extracted the data independently and also assessed the quality of the retrieved studies. The search strategy resulted in 494 articles, of which 14 met the inclusion criteria. Two main anchorage situations were identified: anchorage of molars during space closure after premolar extractions and anchorage loss in the incisor or premolar region (or both) during molar distalization. Because of contradictory results and the vast heterogeneity in study methods, the scientific evidence was too weak to evaluate anchorage efficiency during space closure. Intraoral molar distalization leads to anchorage loss in various amounts depending on the choice of distalization unit. Most of the studies had serious problems with small sample size, confounding factors, lack of method error analysis, and no blinding in measurements. To obtain reliable scientific evidence, controlled RCT's with sufficient sample sizes are needed to determine which anchorage system is the most effective in the respective anchorage situation. Further studies should also consider patient acceptance and cost analysis as well as implants as anchorage.
  •  
8.
  • Jönson Ring, Ingrid, 1971-, et al. (författare)
  • Rapid maxillary expansion in children with nocturnal enuresis: : A randomized placebo-controlled trial
  • 2019
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 90:1, s. 31-38
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • OBJECTIVE:To investigate whether rapid maxillary expansion (RME) is a useful treatment method for nocturnal enuresis (NE) and whether the treatment effect is due to placebo. The study also aimed to identify prognostic variables in patients responding to treatment.MATERIALS AND METHODS:Thirty-eight children with therapy-resistant NE were recruited and randomized into two groups: the intervention group or placebo group. Both groups were treated with RME, but the placebo group received treatment with a sham appliance for 2 weeks before having the actual treatment. A medical history focused on micturition habits, previous treatment, heredity, and sleep disorders was taken. Daytime voided volumes and nocturnal urine production during wet nights were recorded before the intervention.RESULTS:Of the 38 patients recruited, two dropped out as one patient was unable to take dental impressions and one refused to have the appliance fitted. There was a statistically significant reduction of wet nights after the RME treatment (P < .001). No significant reduction was found after the placebo treatment (P < .40). Eleven patients (35%) had their enuresis frequency reduced by >50%. Large voiding volume and a wide maxilla at baseline had a strong association with positive treatment outcome.CONCLUSIONS:RME has a modest effect on children with therapy-resistant NE. The treatment outcome does not seem to be due to a placebo effect of the appliance. A wide maxillary width and large voiding volume at baseline seem to be positive predictors regarding response to treatment.
  •  
9.
  • Lindsten, Rune, et al. (författare)
  • Transverse dental and dental arch depth dimensions in the mixed dentition in a skeletal sample from the 14th to the 19th century and Norwegian children and Norwegian Sami children of today
  • 2002
  • Ingår i: Angle orthodontist. - 0003-3219 .- 1945-7103. ; 72:5, s. 439-48
  • Tidskriftsartikel (refereegranskat)abstract
    • Secular changes in transverse dental arch dimensions and dental arch depth were studied. Four cohorts with mixed dentitions were selected. The skull group comprised 48 skulls dating from the 14th to the 19th century and belonging to The Schreiner Collection at the Department of Anatomy, University of Oslo. The 1980s Sami group was comprised of 39 boys and 34 girls born in 1987 and living in the northern part of Norway. The 1960s Oslo group was comprised of 31 boys and 30 girls born in 1963 and living in the southern part of Norway. The 1980s Oslo group was comprised of 32 boys and 26 girls born in 1983 and living in the same area in southern Norway as the previous Oslo group. Sex was unknown in the skeletal sample, and the groups were analyzed with the sexes pooled; separate descriptive values are presented for the modern groups. The mandibular intercanine distance was smaller in the skulls compared with the modern groups. The transverse intermaxillary difference between the molars was larger in the skull group than in the 1980s Oslo group. The difference between the maxillary and mandibular intercanine distances was larger in the skulls compared with the modern groups, although the small number of measurements in the skull group impeded further analysis. The arch depth was smaller in the skull group compared with the modern groups; the 1960s Oslo group deviated because of a higher prevalence of caries in the second deciduous molars. The overjet was smaller among the skulls. The arch form measured as the angle between the left and right molar tooth rows was more acute in the skulls than in the modern groups. It was concluded that smaller arch depths are found in skeletal samples at early ages and that attrition does not explain the more upright incisors found in skeletal samples. A secular trend was found in the intermaxillary relation, which indicated that children in the 1980s Oslo group were at greater risk of developing a posterior cross-bite than children born in the 14th to 19th centuries.
  •  
10.
  • Abrahamsson, Cecilia, et al. (författare)
  • Alterations of temporomandibular disorders before and after orthognathic surgery
  • 2007
  • Ingår i: Angle orthodontist. - : Angle Orthodontist. - 0003-3219 .- 1945-7103. ; 77:4, s. 729-734
  • Forskningsöversikt (övrigt vetenskapligt/konstnärligt)abstract
    • OBJECTIVE: To answer the question whether orthognathic surgery does affect the prevalence of signs and symptoms of temporomandibular disorders (TMDs). MATERIALS AND METHODS: A literature survey in the PubMed and Cochrane Library electronic databases was performed and covered the period from January 1966 to April 2006. The inclusion criteria were controlled, prospective or retrospective studies comparing TMDs before and after orthognathic surgery in patients with malocclusion. There were no language restrictions, and three reviewers selected and extracted the data independently. The quality of the retrieved articles was evaluated by four reviewers. RESULTS: The search strategy resulted in 467 articles, of which 3 met the inclusion criteria. Because of few studies with unambiguous results and heterogeneity in study design, the scientific evidence was insufficient to evaluate the effects that orthognathic surgery had on TMD. Moreover, the studies had problems with inadequate selection description, confounding factors, and lack of method error analysis. CONCLUSION: To obtain reliable scientific evidence, additional well-controlled and well-designed studies are needed to determine how and if orthognathic surgery alters signs and symptoms of TMD.
  •  
11.
  • Abrahamsson, Cecilia, et al. (författare)
  • TMD in consecutive patients referred for orthognathic surgery
  • 2009
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 33:4, s. 201-226
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To answer the question whether temporomandibular disorders (TMD) were more common in a group of individuals referred for orthognathic surgery than in a control group. The null hypothesis was that neither the frequency of signs and symptoms of TMD or diagnosed TMD would differ between the patient group and a control group. MATERIALS AND METHODS: A sample of 121 consecutive patients referred for orthognathic surgery at the Department of Oral Maxillofacial Surgery, Malmö University Hospital, Sweden, was interviewed and examined regarding signs and symptoms of TMD and headaches. A control group was formed by 56 age- and gender-matched individuals attending the Department of Oral Diagnosis, Faculty of Odontology, Malmö University, Sweden, and Public Dental Health Clinic in Oxie, County of Skane, Sweden. TMD diagnoses were used according to Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). RESULTS: The patient group showed more myofascial pain without limited opening, disc displacement with reduction, and arthralgia according to RDC/TMD than the control group. The patient group also had more symptoms and signs of TMD in general. CONCLUSIONS: The null hypothesis was rejected because patients who were to be treated with orthognathic surgery had more signs and symptoms of TMD and higher frequency of diagnosed TMD compared with the matched control group.
  •  
12.
  • Al Mulla, Anas H, et al. (författare)
  • Caries risk profiles in orthodontic patients at follow-up using Cariogram.
  • 2009
  • Ingår i: The Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 79:2, s. 323-30
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To analyze caries-related factors shortly after orthodontic treatment and to use the Cariogram computer program to describe caries risk profiles at follow-up in these patients. MATERIALS AND METHODS: One hundred orthodontic patients age 12-29 years, with a mean age of 17.5 years, were included in the study. They were divided into two groups (50 in each) based on their prebonding decayed, filled surfaces index (DFS). High (5 > or = DFS) and low (2 < or = DFS) groups were created. All patients were examined after debonding in the following order: interview, plaque score, caries examination, saliva samples, bitewing radiographs, panoramic radiographs, and intra-oral digital photos. All types of carious lesions in both the enamel and dentine were diagnosed clinically and radiographically and included in the DFS index. A paraffin-stimulated whole saliva sample was collected for estimations of secretion rate, buffer capacity, and number of mutans streptococci and lactobacilli. RESULTS: The low caries group (2 < or = DFS) displayed a statistically significant difference and low values for the following factors, DFS (P < .001), lactobacilli (P < .001), mutans streptococci (P < .001), and high Cariogram percent (P < .001). The plaque index displayed very close significance (P = .051). CONCLUSIONS: Patients with high (5 > or = DFS) numbers before orthodontic treatment ran a higher risk of developing caries. They had significantly higher numbers of mutans streptococci and lactobacilli and had less chance of avoiding new cavities according to the Cariogram.
  •  
13.
  • Al-Taai, Nameer, 1975-, et al. (författare)
  • Effect of rapid maxillary expansion on monosymptomatic primary nocturnal enuresis
  • 2015
  • Ingår i: Angle Orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 85, s. 102-108
  • Tidskriftsartikel (refereegranskat)abstract
    • © 2015 by The EH Angle Education and Research Foundation, Inc. Objective: To evaluate the effects of rapid maxillary expansion (RME) on nocturnal enuresis (NE) related to the nasal airway, nasal breathing, and plasma osmolality (as an indicator for antidiuretic hormone). Materials and Methods: Nineteen patients with monosymptomatic primary NE, aged 6-15 years, were treated with RME for 10-15 days. To exclude a placebo effect of the RME appliance, seven patients were first treated with a passive appliance. Computed tomography of nasal cavity, rhinomanometric, and plasma osmolality measurements were made 2-3 days before and 2-3 months after the RME period. RME effects on NE were followed for three more years. Results: Two to three months after the expansion there were significant improvements in the breathing function and a decrease in the plasma osmolality. NE decreased significantly in all patients after the RME period, and all patients showed full dryness after 3 years. Conclusions: This study demonstrates that RME causes complete dryness in all patients, with significant effects on pathophysiologicalmechanisms related to NE.
  •  
14.
  • Aldahool, Yasser, et al. (författare)
  • Spontaneous space closure in patients treated with early extraction of the first permanent molar : a retrospective cohort study using radiographs
  • 2024
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 94:2, s. 180-186
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To assess the success rate of spontaneous space closure after extraction of the first permanent molar (FPM) in the maxilla and the mandible, and to identify the factors that make spontaneous space closure most favorable in each.MATERIALS AND METHODS: A retrospective records-based cohort study was conducted through a search of the database of the Public Dental Service, Stockholm County Council, Stockholm, for young adults born between 2000 and 2001, who underwent extraction of one or more FPM between 2006 and 2016. A total of 995 extracted teeth were identified, of which 203 teeth in 155 patients met the inclusion criteria.RESULTS: Of the 203 extracted teeth, 166 (81.8%) did not receive any orthodontic treatment. The success rate for space closure in orthodontically treated patients was 91.9%. The success rate for spontaneous space closure was 84.3%. All unsuccessful spontaneous space closure in the maxilla occurred in patients older than 12 years. The dental developmental stage of the second permanent molar (SPM) had a statistically significant association with spontaneous space closure in the mandible (P < .001).CONCLUSIONS: The success rate of spontaneous space closure was high (84.3%) and was higher in the maxilla (94.1%) than the mandible (74.1%). Age at time of extraction and dental developmental stage of the SPM were significant factors for successful spontaneous space closure in the maxilla and mandible, respectively.
  •  
15.
  • Almosa, Naif Abdullah, 1981, et al. (författare)
  • Caries risk profile using the Cariogram in governmental and private orthodontic patients at de-bonding.
  • 2012
  • Ingår i: The Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 1945-7103 .- 0003-3219. ; 82:2, s. 267-274
  • Tidskriftsartikel (refereegranskat)abstract
    • Abstract Objectives: To analyze various caries-related factors in orthodontic patients at de-bonding, and to test the null hypothesis that there is no difference in caries risk between governmental and private orthodontic patients immediately after orthodontic treatment. Materials and Methods: A cross-sectional examination was carried out on 89 orthodontic patients aged 13-29years, mean age 21.5years. They were divided into two groups based on the center of treatment, governmental group (G) (n = 45) and private group (P) (n = 44). The investigation comprised a questionnaire, plaque scoring, caries examination, bitewing radiographs, salivary secretion rate, buffering capacity, and cariogenic microorganisms. Data were entered into the Cariogram PC program to illustrate caries risk profiles. Results: Findings revealed that "the chance of avoiding new cavities," according to the Cariogram, was high in the P-group and low in the G-group (61% and 28%, respectively) (P < .001). Decayed, missing, and filled surfaces (DMFS), plaque index, mutans streptococcus and lactobacillus counts, and salivary buffer capacity were significantly higher in the G-group compared with the P-group (P < .05). The total number of caries lesions at de-bonding in the G-group was more than two times higher than that in the P-group (150 vs 68) (P < .001). Conclusions: The "chance to avoid new cavities" in orthodontic patients at de-bonding was less in the governmental group compared with the private group, as illustrated by the Cariogram. The governmental group also had significantly less favorable values than the private group for most of the caries-related factors.
  •  
16.
  • Almosa, Naif Abdullah, 1981, et al. (författare)
  • Diagnosing the severity of buccal caries lesions in governmental and private orthodontic patients at debonding, using the ICDAS-II and the DIAGNOdent Pen.
  • 2014
  • Ingår i: The Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 1945-7103 .- 0003-3219. ; 84:3, s. 430-436
  • Tidskriftsartikel (refereegranskat)abstract
    • Abstract Objectives: To clinically evaluate the prevalence of buccal caries and white spot lesions (WSLs) at debonding in governmental and private orthodontic patients, using the International Caries Detection and Assessment System (ICDAS-II) and the DIAGNOdent Pen, and to study the correlation between the two methods. Materials and Methods: A cross-sectional study was carried out on the nonextracted premolars and anterior teeth of 89 orthodontic patients. They were recruited into two groups based on the treatment center they attended: governmental group (G; n = 45) and private group (P; n = 44). Immediately after debonding, the examination of buccal caries and WSLs on premolars and anterior teeth was carried out using the ICDAS-II and the DIAGNOdent Pen. Cross-tabulation was applied to study the correlation between the ICDAS-II index and the DIAGNOdent Pen by calculating the Spearman correlation coefficient. Results: The G group showed a significantly higher (P < .0001) prevalence of WSLs and/or buccal caries compared to that of the P group based on evaluation by the two methods. Based on ICDAS-II, 43% of the patients in the P group and 9% in the G group were free from any WSLs. In the G group, 22% of the patients had ≥16 lesions, whereas there were none for the P group. The Spearman correlation coefficient between the two methods was .71. Conclusions: The prevalence of caries and/or WSLs at debonding was significantly higher in the G group compared to the P group. The clinical index (ICDAS-II) showed a good correlation with the DIAGNOdent Pen.
  •  
17.
  • Andrén, Anders, et al. (författare)
  • Pattern and Amount of Change after Orthodontic Correction of Upper Front Teeth 7 Years Postretention.
  • 2010
  • Ingår i: The Angle Orthodontists. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 80:4, s. 432-437
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To investigate the amount and pattern of changes of maxillary front teeth 7 years postretention, which previously were retained with a bonded retainer. Materials and Methods: The study group consisted of 27 patients. Study models before treatment (T1), at debonding (T2), 1 year after removal of the upper bonded retainer (T3), and 7 years postretention (T4) were present. The irregularity index (sum of contact point displacements) and the rotations of front teeth toward the raphe line were calculated. Results: The irregularity index of the maxillary front teeth changes very little or not at all during the first year postretention. Further change long term resulted in an irregularity index of mean 2.0 (range 0.0–5.8). The contact relationship between the laterals and centrals seems to be the most critical. Forty rotated teeth in 21 patients were corrected more than 20°. Mean relapse during the first year postretention was 6.7° (range 0.0°–14.7°). Mean changes during 7 years was 8.2° (range 0.0°–19.3°). Conclusions: Relapse of upper front teeth retained with a bonded retainer is minor in both the short and long term. If permanent retention is required after 3 years of retention, it is enough to retain the incisors.
  •  
18.
  • Bazargani, Farhan, 1969-, et al. (författare)
  • A comparative evaluation of lingual retainer failure bonded with or without liquid resin : A randomized clinical study with 2-year follow-up
  • 2012
  • Ingår i: Angle orthodontist. - : E. H. Angle Education and Research Foundation. - 0003-3219 .- 1945-7103. ; 82:1, s. 84-87
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To prospectively evaluate and compare the effect of liquid resin on lingual retainer failure after a 2-year follow-up.Materials and Methods: Fifty-two patients (26 males, 26 females) with a mean age of 18.3 +/- 1.3 years at follow-up, were randomized into two groups: the resin group and the nonresin group. The lingual retainers in the resin group were bonded to the enamel surfaces with two-step bonding resin, Optibond FL, and Tetric EvoFlow. The nonresin group followed the same procedure of bonding retainers but without applying the Optibond FL. Retainer failure, calculus accumulation, and discoloration of composite pads adjacent to the retainers during the 2-year observation period were registered, compared, and statistically analyzed with a Fisher's exact test and chi-square test.Results: In the resin group, the incidence of retainer failure was 4% and occurred at the composite-wire interface; in the nonresin group, the incidence was 27% and occurred at the enamel-composite interface. The difference between the groups was statistically significant (P =.049). The incidences of calculus accumulation and discoloration adjacent to the composite pads were 27% and 69% (P =.003 and P <.001) higher in the nonresin group, respectively.Conclusion: Application of resin in bonding of lingual retainers appears to reduce the incidence of retainer failure as well as the incidence of calculus accumulation and discoloration adjacent to the composite pads. (Angle Orthod. 2012;82:84-87.)
  •  
19.
  • Bazargani, Farhan, 1969-, et al. (författare)
  • Effect of Interceptive Extraction of Deciduous Canine on Palatally Displaced Maxillary Canine : A Prospective Randomized Controlled Study
  • 2014
  • Ingår i: Angle orthodontist. - : The EH Angle Education and Research Foundation Inc. - 0003-3219 .- 1945-7103. ; 84:1, s. 3-10
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To evaluate the effect of the extraction of deciduous canines on palatally displaced canines (PDCs), to analyze the impact of the age of the patient on this interceptive treatment, and to assess the outcome of one-sided extraction of a maxillary primary canine on the midline of the maxilla. Materials and Methods: This study included 48 PDCs in 24 consecutive patients with bilateral PDCs. The mean age of the patients at diagnosis was 11.6 years (standard deviation 1.2 years). After randomization, one deciduous canine of each patient was assigned to extraction, and the contralateral side served as control. The patients were then followed at 6-month intervals for 18 months with panoramic and intraoral occlusal radiographs. Results: The rates of successful eruption of the PDCs at extraction and control sites were 67% and 42%, respectively, at 18 months. The difference between the sites was statistically significant, and the effect was significantly more pronounced in the younger participants. A significant decrease in arch perimeter occurred at extraction sites compared to control sites during the observation period. No midline shift toward the extraction side was observed in any patient. Conclusions: The extraction of the deciduous canine is an effective measure in PDC cases, but it must be done in younger patients in combination with early diagnosis, at the age of 10-11 years. Maintenance of the perimeter of the upper arch is an important step during the observation period, and a palatal arch as a space-holding device is recommended.
  •  
20.
  • Bazargani, Farhan, 1969-, et al. (författare)
  • Rapid Maxillary Expansion in Therapy-Resistant Enuretic Children : An Orthodontic Perspective
  • 2016
  • Ingår i: Angle orthodontist. - : The EH Angle Education and Research Foundation Inc. - 0003-3219 .- 1945-7103. ; 86:3, s. 481-486
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To evaluate whether rapid maxillary expansion (RME) could reduce the frequency of nocturnal enuresis (NE) in children and whether a placebo effect could be ruled out. Methods: Thirty-four subjects, 29 boys and five girls with mean age of 10.7 +/- 1.8 years suffering from primary NE, were recruited. All subjects were nonresponders to the first-line antienuretic. treatment and therefore were classified as "therapy resistant." To rule out a placebo effect of the RME appliance, all children were first treated with a passive appliance for 4 weeks. Rhinomanometry (RM), acoustic rhinometry (AR), polysomnographic registration, and study casts were made at different time points. Results: One child experienced severe discomfort from the RME appliance and immediately withdrew from the study. Following RME, the long-term cure rate after 1 year was 60%. The RM and AR measurements at baseline and directly after RME showed a significant increase in nasal volume and nasal airflow, and there was a statistically significant correlation between reduction in enuresis and increase in nasal volume. Six months postretention, a 100% relapse of the dental overexpansion could be noted. Conclusions: RME has a curative effect in some children with NE, which could be connected to the positive influence of RME on the sleep architecture. Normal transverse occlusion does not seem to be a contraindication for moderate maxillary expansion in attempts to cure NE in children.
  •  
21.
  • Bazargani, Farhan, 1969-, et al. (författare)
  • Three-dimensional Analysis of Effects of Rapid Maxillary Expansion on Facial Sutures and Bones : A systematic review
  • 2013
  • Ingår i: Angle orthodontist. - : The EH Angle Education and Research Foundation Inc. - 0003-3219 .- 1945-7103. ; 83:6, s. 1074-1082
  • Forskningsöversikt (refereegranskat)abstract
    • Objective: To evaluate the evidence on three-dimensional immediate effects of rapid maxillary expansion (RME) treatment on growing patients as assessed by computed tomography/cone beam computed tomography (CT/CBCT) imaging. Materials and Methods: The published literature was searched through the PubMed, Embase, and Cochrane Library electronic databases from January 1966 to December 2012. The inclusion criteria consisted of randomized controlled trials, prospective controlled studies, and prospective case-series. Two reviewers extracted the data independently and assessed the quality of the studies. Results: The search strategy resulted in 73 abstracts or full-text articles, of which 10 met the inclusion criteria. When treating posterior crossbites with a RME device, the existing evidence points out that the midpalatal suture opening is around 20%-50% of the total screw expansion. There seems to be no consistent evidence on whether the midpalatal sutural opening is parallel or triangular. The effect on the nasal cavity dimensions after RME seems to be apparent and indicates an enlargement between 17% and 33% of the total screw expansion. Circummaxillary sutures, particularly the zygomaticomaxillary and frontomaxillary sutures and also spheno-occipital synchondrosis, appear to be affected by the maxillary expansion. Overall, however, the changes were small and the evidence not conclusive. Conclusions: CT imaging proved to be a useful tool for assessment of treatment effects in all three dimensions. The majority of the articles were judged to be of low quality, and therefore, no evidence-based conclusions could to be drawn from these studies.
  •  
22.
  • Bjerklin, Krister, et al. (författare)
  • Management of ectopic maxillary canines : variations among orthodontists
  • 2008
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 78:5, s. 852-859
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To document and analyze factors involved in decision-making by orthodontists in managing disturbances of eruption of maxillary canines. MATERIAL AND METHODS: The participants comprised orthodontic specialists and active members of the Swedish Orthodontic Society. Those selected for the study sample were under 65 years of age or younger and had been treating orthodontic patients for at least 1 year as a specialist. Three typical cases were presented for treatment proposals. The case notes, including radiographs and specific background data, were sent to the 182 selected orthodontists. The orthodontists were also requested to complete a questionnaire about practice profile, comprising eight questions. RESULTS: The response rate was 86.3%; yielding 157 participants (mean age 53.8 years, SD 8.12). Analysis disclosed no differences between responders and nonresponders regarding age, gender, and years of specialist practice. For treatment plans based on panoramic radiographs, intraoral radiographs, and status and anamnesis, there was general consensus. However, when supplementary information from computer tomography (CT) was provided, disclosing root resorption half-way to the pulp or more on the lateral incisor, the orthodontists' treatment proposals varied. Gender, age, and practice profile of the orthodontists had little association with the decision-making. CONCLUSIONS: Supplementary CT information led to variations in decision-making with respect to treatment of eruption disturbances of maxillary canines. This lack of consensus among specialist orthodontists can have negative implications for patients.
  •  
23.
  • Bondemark, Lars, et al. (författare)
  • Anchorage Provided during Intra-arch Distal Molar Movement : a Comparison between the Nance Appliance and a Fixed Frontal Bite Plane
  • 2005
  • Ingår i: Angle orthodontist. - : Angle Society. - 0003-3219 .- 1945-7103. ; 75:3, s. 437-443
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • The aim of this retrospective study was to evaluate and compare the anchorage provided with the Nance appliance (NA) and the fixed frontal bite plane (FBP) during intra-arch distal molar movement. After a sample size calculation, 20 patients were recruited and randomly selected for each group from patients who fulfilled the following criteria: use of an intra-arch Ni-Ti coil appliance with either NA or FBP to provide anchorage during a six-month molar distalization period, no orthodontic treatment before molar distalization, and first and second maxillary molars in occlusion. The outcome measures assessed were anchorage loss, ie, anterior movement of maxillary central incisors, distal movement of maxillary molars, and bite opening effect. The mean age in the NA group was 14.7 years (SD 1.09) and in the FBP group 15.0 years (SD 0.99). The data revealed that the maxillary central incisors moved anteriorly 1.4 mm in the NA group and 1.9 mm in the FBP group. The difference in anchorage loss was not significant. The mean amount of molar distalization within the maxilla was 1.7 mm in the NA group and 1.8 mm in the FBP group. In both groups, the overbite was significantly reduced and the overbite was decreased significantly more in the FBP group. Because neither the NA nor FBP provided stable anchorage, a second treatment phase is recommended to reverse the anchorage loss after distal molar movement. If molar distalization is planned in deep bite cases, the FBP is the anchorage system of choice.
  •  
24.
  • Bondemark, Lars, et al. (författare)
  • Extraoral vs intraoral appliance for distal movement of maxillary first molars : a randomized controlled trial
  • 2005
  • Ingår i: Angle orthodontist. - : Angle Society. - 0003-3219 .- 1945-7103. ; 75:5, s. 699-706
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Using randomized controlled trial methodology, the aim of this study was to evaluate and compare the treatment effects of an extraoral appliance (EOA) and an intraoral appliance (IOA) for distal movement of maxillary first molars. A total of 40 patients (mean 11.5 years, SD 1.29) at the Orthodontic Clinic, National Health Service, Skane County Council, Malmö, Sweden, were randomized to receive treatment with either extraoral traction (cervical headgear) or an IOA us-ing superelastic coils for distal movement of maxillary first molars. The inclusion criteria were a nonextraction treatment plan, a Class II molar relationship and maxillary first molars in occlusion with no erupted maxillary second molars. The outcome measures to be assessed in the trial were treatment time, cephalometric analysis of distal molar movement, anterior movement of maxillary central incisors, ie, anchorage loss and sagittal and vertical skeletal positional changes of the maxilla and mandible. In the IOA group, the molars were distalized during an average time of 5.2 months, whereas in the EOA group the corresponding time was 6.4 months (P < .01). The mean amount of distal molar movement was significantly higher in the IOA than in the EOA group, three mm vs 1.7 mm (P < .001). Moderate anchorage loss was produced with the IOA implying increased overjet (0.9 mm) whereas the EOA created decreased overjet (0.9 mm). It can be concluded that the IOA was more effective than the EOA to create distal movement of the maxillary first molars.
  •  
25.
  • Bondemark, Lars, et al. (författare)
  • Incidental findings of pathology and abnormality in pretreatment orthodontic panoramic radiographs
  • 2006
  • Ingår i: Angle orthodontist. - : Angle Society. - 0003-3219 .- 1945-7103. ; 76:1, s. 98-102
  • Tidskriftsartikel (refereegranskat)abstract
    • Panoramic radiographs, in combination with a clinical examination, are routinely used as an aid to orthodontic diagnosis and treatment planning. The aim of this study was to evaluate the prevalence and location of incidental findings of pathology and abnormalities in pretreatment orthodontic panoramic radiographs. A total of 496 patients (232 girls and 264 boys; mean age 11.2 years, SD 2.33) were randomly selected from the Orthodontic Clinic at the Faculty of Odontology, University of Malmo, Sweden. All radiographic examinations were performed between 1999 and 2003 at the Department of Oral Radiology, Faculty of Odontology, University of Malmo, Sweden. Two independent examiners analyzed the radiographs for abnormalities and diagnoses of pathology. However, caries and findings related to the orthodontic treatment plan, such as eruption disturbances and missing or supernumerary teeth, were not recorded. All radiographs with positive findings were reexamined by a third examiner, a specialist registrar in oral radiology. A total of 56 findings in 43 patients (8.7%) were recorded, and significantly more findings were detected in girls (P = .007). The most common findings were radiopacities (idiopathic sclerosis) in alveolar bone (n = 22), thickening of mucosal lining in sinus maxillaris (n = 15), and periapical inflammatory lesions (n = 10). The majority of the periapical lesions and radiopacities were found in the mandible. In most cases, the findings had no consequence for the orthodontic treatment plan and did not require medical or odontological management. However, the clinician should be aware of the potential to detect pathology and abnormality in pretreatment orthodontic panoramic radiographs.
  •  
26.
  • Bondemark, Lars, et al. (författare)
  • Long-term stability of orthodontic treatment and patient satisfaction : A systematic review
  • 2007
  • Ingår i: Angle orthodontist. - 0003-3219 .- 1945-7103. ; 77:1, s. 181-191
  • Forskningsöversikt (refereegranskat)abstract
    • Objective: To evaluate morphologic stability and patient satisfaction at least 5 years after orthodontic treatment. Materials and Methods: Published literature was searched through the PubMed and Cochrane Library electronic databases from 1966 to January 2005. The search was performed by an information specialist at the Swedish Council on Technology Assessment in Health Care. The inclusion criteria consisted of a follow-up period of at least 5 years postretention, randomized clinical trials, prospective or retrospective clinical controlled studies, and cohort studies, and orthodontic treatment including fixed or removable appliances, selective grinding, or extractions. Two reviewers extracted the data independently and also assessed the quality of the studies. Results: The search strategy resulted in 1004 abstracts or full-text articles, of which 38 met the inclusion criteria. Treatment of crowding resulted in successful dental alignment. However, the mandibular arch length and width gradually decreased, and crowding of the lower anterior teeth reoccurred postretention. This condition was unpredictable at the individual level (limited evidence). Treatment of Angle Class II division 1 malocclusion with Herbst appliance normalized the occlusion. Relapse occurred but could not be predicted at the individual level (limited evidence). The scientific evidence was insufficient for conclusions on treatment of cross-bite, Angle Class III, open bite, and various other malocclusions as well as on patient satisfaction in a long-term perspective. Conclusions: This review has exposed the difficulties in drawing meaningful evidence-based conclusions often because of the inherent problems of retrospective and uncontrolled study design. © 2006 by The EH Angle Education and Research Foundation, Inc.
  •  
27.
  • Bondemark, Lars, et al. (författare)
  • Prevalence of ectopic eruption, impaction, retention and agenesis of the permanent second molar
  • 2007
  • Ingår i: Angle orthodontist. - : Angle Orthodontist. - 0003-3219 .- 1945-7103. ; 77:5, s. 773-778
  • Tidskriftsartikel (populärvet., debatt m.m.)abstract
    • OBJECTIVE: To elucidate the prevalence of ectopic eruption, impaction, and primary and secondary retention as well as agenesis of the permanent second molar (M2) among adolescents. MATERIALS AND METHODS: After a sample size calculation, dental records, including radiographs, of 1543 patients (722 girls and 821 boys), from three clinics in the city of Malmoe, Sweden, were retrospectively analyzed. Series of annual records and radiographs were examined for all patients from 10 to 16 years of age and were carried out during 2004-2006. The prevalence of ectopic eruption, impaction, and primary and secondary retention as well as agenesis of M2s was registered in a standardized manner and according to preset definitions. In addition, the times of emergence of the M2s were recorded. RESULTS: The prevalence of ectopic eruption of M2 was 1.5%, the prevalence of primary retention was 0.6%, and the prevalence of impaction was 0.2%. This means that the overall prevalence of eruption disturbances was 2.3%. In addition, the prevalence of agenesis was 0.8%. The prevalence of ectopic eruption was significantly higher in the mandible. Those patients with eruption disturbances and agenesis of M2 showed significantly delayed eruption of their other M2s compared to the individuals without any eruption disturbances. CONCLUSIONS: The prevalence of eruption disturbances was higher than reported earlier, and, even if the disturbances do not occur frequently, it is important to develop an early diagnosis in order to start the treatment at the optimal time.
  •  
28.
  • d'Amico, Rozmary Mak, et al. (författare)
  • Long-term results of orthodontic treatment of impacted maxillary canines
  • 2003
  • Ingår i: Angle orthodontist. - : Angle Society. - 0003-3219 .- 1945-7103. ; 73:3, s. 231-238
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • A total of 61 children who had 83 maxillary canines impacted were followed up for a mean of 3.5 years (range 1.1-10.9 years) after treatment to evaluate the long-term results of the treatments. In most of the children, the impacted maxillary canines had been surgically exposed and treated with fixed orthodontic appliances. In 11 cases, lateral incisors had been extracted because of extensive root resorption. The esthetic results as well as functional and periodontal conditions were evaluated. Only four of the 61 children were not satisfied with the esthetic result, whereas orthodontists judged only 56% of the results as esthetically acceptable on clinical evaluation and 57% as es-thetically acceptable on color slides. The periodontal conditions and the occlusal function on sides with previously impacted canines and on sides with normally erupted canines, on the whole, were similar. Exceptions were pocket depths of the left lateral incisors and left canines, but these variables were significantly different mainly because of one patient. In lateral movements of the mandible, however, significant differences in contact pattern were found between sides with normally erupted canines and sides with impacted canines. Canine rise occurred more often on working sides with normally erupted canines than with impacted canines.
  •  
29.
  • Dimberg, Lillemor, et al. (författare)
  • Prevalence and change of malocclusions from primary to early permanent dentition : A longitudinal study
  • 2015
  • Ingår i: Angle orthodontist. - : E H Angle Orthodontists Research & Education Foundation, Inc.. - 0003-3219 .- 1945-7103. ; 85:5, s. 728-734
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To follow a group of children from primary to early permanent dentition and determine the prevalence, self-correction, and new development of malocclusions; the need for orthodontic treatment; and the possible influences of habits, breathing disturbances, and allergies.Materials and Methods: Two hundred and seventy-seven children were followed at 3, 7, and 11.5 years of age. Malocclusions and orthodontic treatment need were determined by clinical examinations. Data on sucking habits, breathing disturbances, allergies, dental trauma, and orthodontic treatments were collected from a questionnaire and dental records.Results: Malocclusions were found in 71% of participants at 3 years of age, 56% at 7 years of age, and 71% at 11.5 years of age. Self-correction was noted for anterior open bite, sagittal malocclusions, and posterior crossbite, while deep bite developed. A high number of contact point displacements and spacings contributed to the prevalence of malocclusion rate of 71% at 11.5 years. Severe or extreme orthodontic treatment need was apparent in 22%. Habits, allergies, or breathing disturbances found at 3 years of age had no associations with malocclusions at 11.5 years of age.Conclusions: This sample revealed a significant percentage of malocclusions and orthodontic treatment need. A substantial number of self-corrections and establishment of new malocclusions occurred during the transition from primary to early permanent dentition.
  •  
30.
  •  
31.
  • Egermark, Inger, 1935, et al. (författare)
  • A prospective long-term study of signs and symptoms of temporomandibular disorders in patients who received orthodontic treatment in childhood.
  • 2005
  • Ingår i: The Angle orthodontist. - 0003-3219 .- 1945-7103. ; 75:4, s. 645-50
  • Tidskriftsartikel (refereegranskat)abstract
    • This investigation analyzed the influence of orthodontic treatment performed in childhood on the long-term development of signs and symptoms of temporomandibular disorders (TMDs). The original sample consisted of 50 consecutive patients (27 girls and 23 boys) with different morphological malocclusions, who were to receive orthodontic treatment. Their mean age at start of treatment was 12.9 years. Seventeen (range 15-18) years after completion of orthodontic treatment, 40 former patients (89% of the traced subjects) completed and returned a questionnaire, and 31 subjects (69% of the traced subjects) were also examined clinically. A great majority of the participants were pleased with the result of the orthodontic treatment. Relapses of morphological malocclusions were very uncommon. The prevalence of signs and symptoms of TMD was low both before and after the active phase of orthodontic treatment, as well as at the long-term follow-up after 15 to 18 years. The incidence per year of manifest TMD requiring treatment was approximately 1%. The result of the present investigation supports the opinion that orthodontic treatment in childhood does not entail an increased risk to develop either signs or symptoms of TMD later in life.
  •  
32.
  • Feldmann, Ingalill, et al. (författare)
  • Pain and Discomfort During the First Week of Rapid Maxillary Expansion (RME) Using Two Different RME Appliances : A Randomized Controlled Trial
  • 2017
  • Ingår i: Angle orthodontist. - : E H Angle Orthodontists Research & Education Foundation, Inc.. - 0003-3219 .- 1945-7103. ; 87:3, s. 391-396
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: To evaluate and compare perceived pain intensity, discomfort, and jaw function impairment during the first week with tooth-borne or tooth-bone-borne rapid maxillary expansion (RME) appliances. Materials and Methods: Fifty-four patients (28 girls and 26 boys) with a mean age of 9.8 years (SD 1.28 years) were randomized into two groups. Group A received a conventional hyrax appliance and group B a hybrid hyrax appliance anchored on mini-implants in the anterior palate. Questionnaires were used to assess pain intensity, discomfort, analgesic consumption, and jaw function impairment on the first and fourth days after RME appliance insertion. Results: Fifty patients answered both questionnaires. Overall median pain on the first day in treatment was 13.0 (range 0-82) and 3.5 (0-78) for groups A and B, respectively, with no significant differences in pain, discomfort, analgesic consumption, or functional jaw impairment between groups. Overall median pain on the fourth day was 9.0 (0-90) and 2.0 (0-71) for groups A and B, respectively, with no significant differences between groups. There were also no significant differences in pain levels within group A, while group B scored significantly lower concerning pain from molars and incisors and tensions from the jaw on day 4 than on the first day in treatment. There was a significant positive correlation between age and pain and discomfort on the fourth day in treatment. No correlations were found between sex and pain and discomfort, analgesic consumption, and jaw function impairment. Conclusions: Both tooth-borne and tooth-bone-borne RME were generally well tolerated by the patients during the first week of treatment.
  •  
33.
  • Feldmann, Ingalill, et al. (författare)
  • Pain intensity and discomfort following surgical placement of orthodontic anchoring units and premolar extraction : a randomized controlled trial
  • 2007
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 77:4, s. 578-585
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To evaluate and compare perceived pain intensity and discomfort between the placement of two different orthodontic anchoring units designed for osseointegration and premolar extraction in adolescent patients. MATERIALS AND METHODS: A total of 120 adolescent patients (60 girls and 60 boys) were recruited and randomized into three groups. Group A underwent installation of an onplant, group B installation of an Orthosystem implant, and group C premolar extraction. Pain intensity and discomfort, analgesic consumption, limitations in daily activities, and functional jaw impairment were evaluated the first evening and one week after the intervention. RESULTS: Pain intensity following surgical installation of an onplant was comparable to the pain intensity experienced after premolar extraction, but there was significantly less pain after surgical installation of an Orthosystem implant compared to installation of an onplant (P = .002) or premolar extraction (P = .007). The protective, vacuum-formed stent caused great discomfort, even more discomfort than the surgical sites following installation of the onplant or the Orthosystem implant. CONCLUSION: The Orthosystem implant was better tolerated than the onplant in terms of pain intensity, discomfort, and analgesic consumption and was, therefore, the anchorage system of choice in a short-term perspective.
  •  
34.
  • Feldmann, Ingalill (författare)
  • Satisfaction with orthodontic treatment outcome
  • 2014
  • Ingår i: The Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 1945-7103 .- 0003-3219. ; 84:4, s. 581-587
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives:To examine factors associated with treatment outcome satisfaction in a group of adolescent patients.Materials andMethods:One hundred and twenty patients (60 girls and 60 boys; mean age, 14.3 years; standard deviation [SD], 1.73 years) were consecutively recruited. The inclusion criteria for all patients were as follows: adolescents with a permanent dentition in need of orthodontic treatment and a treatment plan involving extractions (two or four premolars) followed by fixed appliances in both jaws. Questionnaire 1, concerning treatment motivation and expectations, was assessed prior to treatment start. Questionnaire 2 was assessed after active treatment and included questions about satisfaction with treatment outcome, quality of care and attention, and perceived pain and discomfort during active treatment.Results:One hundred and ten patients completed the trial (54 boys and 56 girls; mean age, 16.9 years; SD, 1.78 years). Median values for satisfaction with treatment outcome were generally high. There was a clear correlation (P ≤ .001) between satisfaction with treatment outcome and patients' perception of how well they had been informed and cared for during treatment. Pain and discomfort during treatment also strongly affected treatment satisfaction. Sex, treatment time, and Peer Assessment Rating index pre- and posttreatment as well as expectations for future treatment showed no correlation with treatment satisfaction.Conclusions:Care and attention was the variable showing the highest correlation with satisfaction with treatment outcome. Patients' perceptions of pain and discomfort during treatment had an overall negative correlation with treatment satisfaction. Satisfaction with treatment outcome is a complex issue and requires further exploration in future research.
  •  
35.
  • Ganzer, Niels, et al. (författare)
  • Pain and discomfort following insertion of miniscrews and premolar extractions : A randomized controlled trial
  • 2016
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 86:6, s. 891-899
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To investigate and compare the experience of pain and discomfort between insertion of miniscrews and premolar extractions in adolescent patients. Materials and Methods: A total of 80 adolescents were recruited and randomized into groups A and B. Both groups were treated with extraction of the upper first premolars and fixed appliance. Beyond the fixed appliance, patients in group A received anchorage reinforcement with miniscrews. Miniscrews were inserted buccally between the second premolar and first molar when space closure started. Space closure was performed as en masse retraction with immediate loading by 150-g coil springs. Pain, discomfort, impact on daily activities, and functional jaw impairment were assessed with patient-reported questionnaires. Questionnaires were filled in at baseline, the evening after tooth extraction, 1 week after tooth extraction, the evening after screw placement, and 1 week after screw placement. Results: Patients reported significantly lower levels of pain (P < .001) and discomfort (P = .012) after screw placement compared with premolar extractions. The ability to drink (P = .035) and the ability to take a big bite (P < .001) were also significantly less disturbed in the evening after screw placement. During the first week after screw placement, the impact on leisure time activities was significantly lower (P = .015) compared with premolar extractions. Conclusion: The use of miniscrews in adolescents can be recommended from a pain and discomfort perspective.
  •  
36.
  • Johansson, Kristina, et al. (författare)
  • Orthodontic treatment efficiency with self-ligating and conventional edgewise twin brackets : A prospective randomized clinical trial
  • 2012
  • Ingår i: Angle orthodontist. - : E. H. Angle Education and Research Foundation. - 0003-3219 .- 1945-7103. ; 82:5, s. 929-934
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To conduct a prospective and randomized study of the efficiency of orthodontic treatment with self-ligating edgewise brackets (SL; Time2 brand, American Orthodontics) and conventional edgewise twin brackets (CE; Gemini brand, 3M). less thanbrgreater than less thanbrgreater thanMaterials and Methods: One hundred consecutive patients were randomized to treatment with either SL or CE brackets. The participants were treated by one of three specialists in orthodontics and with continuous instructions alternately by five orthodontic assistants according to our normal treatment routine (ie, modified 0.022 MBT preadjusted edgewise technique). The treatments were evaluated in terms of overall treatment time, number of visits, and treatment outcome using the Index of Complexity, Outcome and Need (ICON). The number of emergency appointments, number of archwires, overjet, relative space, and extractions at treatment start were noted. less thanbrgreater than less thanbrgreater thanResults: After dropouts, the analyzed material consisted of 44 patients treated with SL (mean age 15.3 years, mean ICON 60.7, 70.4 /0 female) and 46 patients treated with CE (mean age 15.0 years, mean ICON 56.5, 71.7/0 female). There were no statistically significant differences between the SL and CE groups in terms of mean treatment time in months (20.4 vs 18.2), mean number of visits (15.5 vs 14.1), mean ICON scores after treatment (13.2 vs 11.9), or mean ICON improvement grade (7.9 vs 9.1). less thanbrgreater than less thanbrgreater thanConclusion: Orthodontic treatment with SL brackets does not reduce treatment time or number of appointments and does not affect posttreatment ICON scores or ICON improvement grade compared with CE brackets. (Angle Orthod. 2012;82:929-934.)
  •  
37.
  • Karlsson, Ingela, et al. (författare)
  • Intraoral maxillary molar distalization
  • 2006
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 76:6, s. 923-929
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • OBJECTIVE: To evaluate the maxillary molar distalization and anchorage loss in two groups, one before (MD 1 group) and one after (MD 2 group) eruption of second maxillary molars. MATERIALS AND METHODS: After a sample size calculation, 20 patients were recruited for each group from patients who fulfilled the following criteria: no orthodontic treatment before distal molar movement, Class II molar relationship defined by at least end-to-end molar relationship, space deficiency in the maxilla, and use of an intra-arch NiTi coil appliance with a Nance appliance to provide anchorage. Patients in the MD 1 group were without any erupted second molars during the distalization period, whereas in the MD 2 group both the first and second molars were in occlusion at start of treatment. The main outcome measures to be assessed were: treatment time, ie, time in months to achieve a normal molar relation, distal movement of maxillary first molars, and anterior movement of maxillary incisors (anchorage loss). The mean age in the MD 1 group was 11.4 years; in the MD 2 group, 14.6 years. RESULTS: The amount of distal movement of the first molars was significantly greater (P < .01) and the anchorage loss was significantly lower (P < .01) in the group with no second molars erupted. The molar distalization time was also significantly shorter (P < .001) in this group, and thus the movement rate was two times higher. CONCLUSIONS: It is more effective to distalize the first maxillary molars before the second molars have erupted.
  •  
38.
  • Kvint, Sven, et al. (författare)
  • Autotransplantation of teeth in 215 patients : A Follow-up Study
  • 2010
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 80:3, s. 446-451
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To evaluate the success rate of autotransplantation of teeth in consecutive patients and to analyze factors affecting the outcome. Materials andMETHODS: The subjects consisted of 215 consecutive patients (101 women and 114 men; aged 9.1-56.4 years, median age 15.2 years [P(10) = 11.4, P(90) = 19.7]) who had undergone transplantation of a total of 269 teeth, all by the same surgeon. In patients with multiple transplants, only the first transplant was included, to ensure that all transplanted teeth were independent units. The transplants were recorded as unsuccessful if the tooth had been extracted or was surviving but with root resorption or ankylosis. The interval between transplantation and final follow-up was a median 4.8 years (P(10) = 2.0, P(90) = 5.5) for successful transplants and a median of 2.4 years (P(10) = 0.4, P(90) = 7.7) for unsuccessful transplants.RESULTS: One-hundred seventy-five (81%) of the transplantations were recorded as successful and 40 (19%) as unsuccessful. Twenty-five teeth had been extracted and 15 had survived but did not fulfill the criteria for success.CONCLUSIONS: The success rate of 215 consecutively transplanted teeth was 81%. The highest success rate was for transplantation of premolars to the maxillary incisor region (100%). Complications at surgery such as difficult extraction, deviant root anatomy, or damaged root periodontium affected the outcome. During growth, a successful transplant preserves alveolar bone.
  •  
39.
  • Laith, Makkia, et al. (författare)
  • Mandibular irregularity index stability following alveolar corticotomy and grafting : a 10-year preliminary study
  • 2015
  • Ingår i: Angle orthodontist. - : Allen Press. - 0003-3219 .- 1945-7103. ; 85:5, s. 743-749
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To evaluate mandibular irregularity index stability following orthodontic treatment facilitated by alveolar corticotomy and augmentation bone grafting (Cort+). Materials and Methods: The irregularity index of 121 orthodontically treated and 15 untreated patient study casts was analyzed at 5 years and 10 years. Results: Cort+ resulted in significantly lower mandibular irregularity index scores at both 5 years (1.5 mm vs 4.2 mm, P , .000) and 10 years (2.1 mm vs 4.1 mm, P , .000) compared with conventionally treated patients. Conclusions: Unmatched samples advise caution with conclusions, but orthodontic therapy combined with Cort+ enhanced the stability of the postorthodontic mandibular irregularity index for at least 10 years in this preliminary study.
  •  
40.
  • Legrell, P E, et al. (författare)
  • Validity of identification of gonion and antegonion in frontal cephalograms
  • 2000
  • Ingår i: Angle orthodontist. - 0003-3219 .- 1945-7103. ; 70:2, s. 157-64
  • Tidskriftsartikel (refereegranskat)abstract
    • This study was designed to develop a method of transferring gonion from lateral to frontal cephalograms, and to use this method as gold standard when evaluating observer performance in identifying gonion in frontal cephalograms. Observer ability to identify antegonion was also evaluated. There was a range of 28 mm in the observers' identification of gonion and a statistically significant deviation from gold standard. The factors "observer" and "cephalogram," regarded as random effects in an ANOVA analysis, and their interaction, each influenced the result, P < .001. The deviation from the mean of all observations for antegonion ranged 8 mm with "cephalogram" having a statistically significant influence. The results suggest that neither gonion nor antegonion can be routinely used as valid landmarks in frontal cephalograms. Gonion can, however, be used if first identified in a lateral cephalogram and transferred to a paired frontal cephalogram aided by radiographic indicators combined with a bilateral scrutiny of projection geometry in different planes through gonion and indicator.
  •  
41.
  • Lennholm, Camilla, et al. (författare)
  • Assessment of thin bony structures using cone-beam computed tomography.
  • 2023
  • Ingår i: The Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 1945-7103 .- 0003-3219.
  • Tidskriftsartikel (refereegranskat)abstract
    • To investigate the validity and reliability of marginal bone level measurements on cone-beam computed tomography (CBCT) images of thin bony structures using various reconstruction techniques, two image resolutions, and two viewing modes.CBCT and histologic measurements of the buccal and lingual aspects of 16 anterior mandibular teeth from 6 human specimens were compared. Multiplanar (MPR) and three-dimensional (3D) reconstructions, standard and high resolutions, and gray scale and inverted gray scale viewing modes were assessed.Validity of radiologic and histologic comparisons were highest using the standard protocol, MPR, and the inverted gray scale viewing mode (mean difference = 0.02 mm) and lowest using a high-resolution protocol and 3D-rendered images (mean difference = 1.10 mm). Mean differences were significant (P < .05) at the lingual surfaces for both reconstructions, viewing modes (MPR windows), and resolutions.Varying the reconstruction technique and viewing mode does not improve the observer's ability to visualize thin bony structures in the anterior mandibular region. The use of 3D-reconstructed images should be avoided when thin cortical borders are suspected. The small difference when using a high-resolution protocol is unjustified due to the higher radiation dose required. Previous studies have focused on technical parameters; the present study explores the next link in the imaging chain.
  •  
42.
  • Lund, Henrik, 1975, et al. (författare)
  • Apical root resorption during orthodontic treatment: A prospective study using cone beam CT
  • 2012
  • Ingår i: The Angle Orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 82:3, s. 480-487
  • Tidskriftsartikel (refereegranskat)abstract
    • Abstract Objective: To investigate the incidence and severity of root resorption during orthodontic treatment by means of cone beam computed tomography (CBCT) and to explore factors affecting orthodontically induced inflammatory root resorption (OIIRR). Materials and Methods: CBCT examinations were performed on 152 patients with Class I malocclusion. All roots from incisors to first molars were assessed on two or three occasions. Results: At treatment end, 94% of patients had ≥1 root with shortening >1 mm, and 6.6% had ≥1 tooth where it exceeded 4 mm. Among teeth, 56.3% of upper lateral incisors had root shortening >1 mm. Of upper incisors and the palatal root of upper premolars, 2.6% showed root shortenings >4 mm. Slanted surface resorptions of buccal and palatal surfaces were found in 15.1% of upper central and 11.5% of lateral incisors. Monthly root shortening was greater after 6-month control than before. Upper jaw teeth and anterior teeth were significantly associated with the degree of root shortening. Gender, root length at baseline, and treatment duration were not. Conclusion: Practically all patients and up to 91% of all teeth showed some degree of root shortening, but few patients and teeth had root shortenings >4 mm. Slanted root resorption was found on root surfaces that could be evaluated only by a tomographic technique. A CBCT technique can provide more valid and accurate information about root resorption.
  •  
43.
  • Lund, Henrik, 1975, et al. (författare)
  • Cone beam computed tomography for assessment of root length and marginal bone level during orthodontic treatment
  • 2010
  • Ingår i: Angle Orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 80:3, s. 466-473
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To evaluate the accuracy and precision of cone beam computed tomography (CBCT) with regard to measurements of root length and marginal bone level in vitro and in vivo during the course of orthodontic treatment. MATERIALS AND METHODS: Thirteen patients (aged 12-18 years) from an ongoing study and a dry skull were examined with CBCT using multiplanar reformatting for measurements of root length and marginal bone level. For in vivo evaluation of changes in root length, an index according to Malmgren et al was used, along with a modification of this method. RESULTS: The in vitro mean difference between physical and radiographic measurements was 0.05 mm (SD 0.75) for root length and -0.04 mm (SD 0.54) for marginal bone level. In vivo the error was <0.35 mm for root length determinations and <0.40 mm for marginal bone level assessments. CONCLUSION: Despite changes in tooth positions, the CBCT technique yields a high level of reproducibility, enhancing its usefulness in orthodontic research.
  •  
44.
  • Makedonas, Dimitrios, et al. (författare)
  • Root resorption diagnosed with cone beam computed tomography after 6 months and at the end of orthodontic treatment with fixed appliances
  • 2013
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 83:3, s. 389-393
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To investigate the prevalence of orthodontically induced root resorption after treatment and the correlation with resorption found after 6 months of treatment. Materials and Methods: One hundred fifty-six patients (11-18 years) treated with fixed appliances and extraction of four premolars were examined with cone beam computed tomography before treatment, after 6 months of treatment (n = 97), and at the end of active treatment. The Malmgren Index was used to describe the degree of root resorption. Results: Severe root resorption (>2 mm, score 3) was found in 25.6% of the patients at the end of treatment. Extreme root resorption was found in one patient. Root resorption was seen more frequently in the maxillary incisor region. There was no correlation between the severity of root resorption after 6 months and the amount observed at the end of treatment. Furthermore, no correlation was seen between treatment duration and the severity of root resorption. Conclusions: Clinically significant resorption was diagnosed in 25.6% of the patients, but no correlations, either with the resorption seen after 6 months or with the length of treatment, were found. Radiographic examination after 3 to 6 months of orthodontic treatment is too early and will not reduce the number of patients who will have teeth with severe root resorption.
  •  
45.
  • Makedonas, Dimitrios, et al. (författare)
  • Root resorption diagnosed with cone beam computed tomography after 6 months of orthodontic treatment with fixed appliance and the relation to risk factors
  • 2012
  • Ingår i: The Angle Orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 82:2, s. 196-201
  • Tidskriftsartikel (refereegranskat)abstract
    • Abstract Objectives: To investigate root resorption after 6 months of active orthodontic treatment and its relation to possible risk factors. Materials and Methods: Ninety-seven patients (10-18 years) with a Class I malocclusion and crowding treated with fixed appliance and premolar extractions were examined with cone beam computed tomography before and after 6 months of active treatment. The exposure covered all teeth from first molar to first molar in both jaws. The Malmgren index was used to evaluate the degree of root resorption. Irregular root contour (score 1) was seen in most teeth already before active treatment, and therefore resorptions were registered only as score 2 (<2 mm, minor resorption) or higher. Results: Minor root resorption was noted in 10% of the patients and severe root resorption, >2 mm (score 3) was found in four patients. Root resorption was more frequently seen in the upper jaw, especially the incisors. There was no statistically significant correlation of root resorption with any of the selected risk factors. Conclusions: After 6 months of treatment, clinically significant resorption was diagnosed in 4% of the patients, ie, in 96% of the patients the radiographic examination did not reveal any significant information. The selected risk factors did not have any impact on the amount of resorption after 6 months of active treatment.
  •  
46.
  • Malmvind, Damir, et al. (författare)
  • Three-dimensional assessment of palatal area changes after posterior crossbite correction with tooth-borne and tooth bone-borne rapid maxillary expansion : A randomized controlled trial with 5-year follow-up
  • 2022
  • Ingår i: Angle orthodontist. - : Angle Orthodontists Research and Education Foundation. - 0003-3219 .- 1945-7103. ; 92:5, s. 589-597
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: To assess and compare the three-dimensional treatment changes in palatal surface area and volume using either tooth-borne (TB) or tooth bone-borne (TBB) rapid maxillary expanders and to evaluate the long-term effects of the two devices and the incidence of the relapse between the groups.Materials and Methods: A total of 52 consecutive patients who met the eligibility criteria were recruited and allocated to either the TB group, mean age 9.3 years (standard deviation [SD], 1.3), or the TBB group, mean age 9.5 years (SD, 1.2). Study casts were taken before, directly after, 1 year after, and 5 years after expansion. Study casts were digitized, superimposed, and evaluated. Participants were randomly allocated in blocks of different sizes using the concealed allocation principle in a 1:1 ratio.Results: Changes in palatal volume, palatal surface area, and palatal projection area within and between the groups up to 5 years after expansion followed the same pattern and did not show any statistically significant differences between the groups. Relapse was seen in 15% of the patients. It seemed that open-bite and a Class III growth pattern could be assumed as prognosis-deteriorating factors in regard to stability of the treatment.Conclusions: There were no significant differences between the TB and TBB groups in palatal volume, palatal shell area, or palatal projection area directly after expansion or at 1 year and 5 years after expansion, which implies that the two devices gave rise to the same immediate and long-term outcomes. (Angle Orthod. 2022;92:589-597.)
  •  
47.
  • Marklund, Marie, et al. (författare)
  • An orthodontic oral appliance
  • 2010
  • Ingår i: Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 80:6, s. 1116-1121
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: This pilot study was performed to test the hypothesis that an orthodontic oral appliance (OA) that is designed to work against the backwardly directed forces on the upper incisors may counteract the reduction in overjet from these devices.MATERIALS AND METHODS: Thirty patients with normal bites, good oral health, and milder sleep apnea were randomized to treatment with either OAs or orthodontic OAs. Bite changes were evaluated on plaster casts and radiographs and by questionnaires after a mean of 2.4 years in 19 frequent users.RESULTS: Four of nine patients in the orthodontic OA group increased their overjet by > or =0.4 mm, while none of the 10 patients in the OA group experienced that effect.CONCLUSION: Only the orthodontic OA increases the overjet; this design may therefore be beneficial to patients at risk of negative effects on their bite during OA treatment.
  •  
48.
  • Naoumova, Julia, et al. (författare)
  • Cone-beam computed tomography for assessment of palatal displaced canine position A methodological study
  • 2014
  • Ingår i: Angle Orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 84:3, s. 459-466
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To assess the inter- and intraexaminer reliability of a measurement method for evaluation of eruption angles and position of palatal displaced canines (PDCs) with cone-beam computed tomography (CBCT) images and to test the validity of the measured angles on a dry skull. Materials and Methods: Twenty patients (eight boys, 12 girls; age 11.4 +/- 1.2 years) were randomly chosen among 67 patients from a study evaluating the interceptive effect of extracting the deciduous canine in children with PDCs. In total, 60 images were analyzed, because each patient had three CBCT examinations (baseline, 6-month control, and endpoint). Two observers assessed the following measurements twice: mesioangular and sagittal angle, vertical position, canine cusp tip, and canine apex to dental arch. The validity of the angular measurements was tested against angular measurements on a dry skull using mathematical formulations. Results: The inter- and intraexaminer mean differences for angular and linear measurements were all low and statistically insignificant (P > .05). The mean differences between the physical and 3D measurements were 0.5 +/- 0.39 mm for the sagittal angle and 0.22 +/- 0.19 mm for the mesioangular angle. Conclusions: Linear and angular measurements on CBCT images are accurate and precise and can be used to assess the precise position of a PDC.
  •  
49.
  • Naoumova, Julia, et al. (författare)
  • Space conditions, palatal vault height, and tooth size in patients with and without palatally displaced canines: A prospective cohort study
  • 2018
  • Ingår i: Angle Orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 88:6, s. 726-732
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: To assess palatal vault height, tooth size, and dental arch dimensions in patients with unilateral and bilateral palatally displaced canines compared with a control group. Materials and Methods: A sample of 66 patients (mean age: 11.5 +/- 1.0 years) with 22 unilateral palatally displaced canines (UPDCs), 22 bilateral palatally displaced canines (BPDCs), and 22 controls (C) were consecutively recruited. All three groups had dental casts that were scanned digitally using the OrthoX three-dimensional model scanner. Tooth size, palatal vault height, dental arch width, dental arch depth, dental arch length, and dental arch space were measured by the same examiner using the GOM software. Remeasurements were made in 10 randomly identified patients. Results: The palatal vault height was significantly lower in the BPDC group compared with controls. A significantly smaller mesial-distal crown width and, in general, more spacing in the maxilla were found in the UPDC and BPDC groups. No differences in arch length or arch width at the molar region were seen between the groups, while the arch length at the canine region was smaller in the UPDC and BPDC groups. However, this was observed in BPDC patients with both deciduous canines present and in most UPDC patients where the deciduous canine was present, compared with the control group, who had more permanent canines present. Conclusions: Patients with PDC had greater reduction in tooth size compared with the control group. The arch length and arch width were similar in patients with and without PDC.
  •  
50.
  • Naraghi, Sasan, et al. (författare)
  • Relapse tendency after orthodontic correction of upper front teeth retained with a bonded retainer.
  • 2006
  • Ingår i: The Angle orthodontist. - 0003-3219 .- 1945-7103. ; 76:4, s. 570-6
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To investigate the amount and pattern of relapse of maxillary front teeth previously retained with a bonded retainer. MATERIALS AND METHODS: The study group consisted of 135 study casts from 45 patients. Recordings from study models before treatment (T1), at debonding (T2), and 1 year after removal of the retainer (T3) were present. All patients had been treated with fixed edgewise appliances. The irregularity index (sum of contact point displacement [CPD]) and rotations of front teeth toward the raphe line were calculated at T1, T2, and T3. RESULTS: The mean irregularity index at T1 was 10.1 (range 3.0-29.9, SD 5.4). At T2 it was 0.7 (range 0.0-2.1, SD 0.7), and at T3 it was 1.4 (range 0.0-5.1, SD 1.2). Fifty-five teeth in 42 patients were corrected more than 20 degrees between T1 and T2 (mean correction 31.4 degrees range 20.0-61.7), and mean relapse in this group was 7.3 degrees (range 0.0-20.5). Regarding alignment of the maxillary front teeth, the contact relationship between the laterals and centrals seems to be the most critical. A significant positive correlation was found between the amount of correction of incisor rotation and the magnitude of relapse but not between the amount of correction of CPD and the magnitude of relapse. Eighty-four percent of the overcorrected CPDs returned to a desired position. CONCLUSIONS: Minor or no relapse was noted at the 1-year follow-up.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-50 av 66
Typ av publikation
tidskriftsartikel (61)
forskningsöversikt (5)
Typ av innehåll
refereegranskat (55)
övrigt vetenskapligt/konstnärligt (10)
populärvet., debatt m.m. (1)
Författare/redaktör
Bondemark, Lars (25)
Bazargani, Farhan, 1 ... (8)
Bjerklin, Krister (7)
Kjellberg, Heidrun, ... (7)
Lund, Henrik, 1975 (5)
Magnuson, Anders (3)
visa fler...
Birkhed, Dowen, 1946 (3)
Paulsson, Liselotte (2)
Karlsson, Ingela (2)
Abrahamsson, Cecilia (2)
Ekberg, EwaCarin (2)
Henrikson, Thor (2)
Larsson, Erik (2)
List, Thomas (2)
Magnusson, Tomas (2)
Legrell, Per Erik (2)
Gröndahl, Hans-Göran ... (2)
Al Mulla, Anas H (2)
Dimberg, Lillemor (2)
Almosa, Naif Abdulla ... (2)
Eriksson, Lars (1)
Bakhiet, M (1)
Nilsson, Peter (1)
Petrén, Sofia (1)
Sonesson, Mikael (1)
Schütz-Fransson, Ulr ... (1)
Nilner, Maria (1)
Sunzel, Bo (1)
Johansson, Kristina (1)
Magnusson, Anders (1)
Isberg, Annika (1)
Axelsson, S. (1)
Nevéus, Tryggve, 196 ... (1)
Nevéus, Tryggve (1)
Kharsa, Saad Al (1)
Salé, Hanna (1)
Ransjö, Maria (1)
Westerlund, Anna, 19 ... (1)
Al-Taai, Nameer, 197 ... (1)
Alfatlawi, Fakhri (1)
Fakhry, Saad (1)
Hansen, K. (1)
Lundgren, Ted, 1959 (1)
Aldahool, Yasser (1)
Algharbi, Muteb (1)
Alhashimi, N (1)
Frithiof, L (1)
Brudvik, P (1)
Aljabab, Mhanna A. (1)
Huggare, Jan (1)
visa färre...
Lärosäte
Malmö universitet (31)
Göteborgs universitet (19)
Uppsala universitet (10)
Örebro universitet (9)
Umeå universitet (6)
Jönköping University (5)
visa fler...
Linköpings universitet (3)
Karolinska Institutet (3)
Lunds universitet (1)
visa färre...
Språk
Engelska (66)
Forskningsämne (UKÄ/SCB)
Medicin och hälsovetenskap (56)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy