| 1. |
- Baeshen, H.A., et al.
(författare)
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Uptake and release of fluoride from fluoride-impregnated chewing sticks (miswaks) in vitro and in vivo
- 2008
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Ingår i: Caries Research. - 0008-6568 .- 1421-976X. ; 42:5, s. 363-368
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Tidskriftsartikel (refereegranskat)abstract
- The purpose was to investigate the uptake and release of fluoride (F) from F-impregnated chewing sticks (miswaks). In the first series, 3-cm-long pieces were impregnated in 1, 2, 3 and 4% NaF solutions for 3 h, 1 day and 3 days (10 pieces/test). There was a dose-response effect with respect to both impregnation time and the concentration of the F solution. In the second and third series, totally 40 miswak pieces were impregnated in 3% NaF for 1 day and 3 days; the outer layer (bark) was separated from the inner spongy part (pulp) and analyzed separately. F was released from both parts, but somewhat more was released from the bark than from the pulp; a plateau was reached at around 30 min. In vivo, 9 healthy subjects used three products for 2 min in a crossover design: (1) a miswak impregnated in 3% NaF for 1 day, (2) a miswak impregnated in 3% NaF for 3 days, and (3) 1 g of F toothpaste (containing 1,450 ppm F as NaF) on a toothbrush. The highest F concentration at the approximal area was obtained after using the miswak impregnated in 3% NaF for 3 days compared with the other products (p < 0.05 or p < 0.01). To conclude, NaF-impregnated miswaks produced a rapid release of F in vitro as well as in vivo and may be an interesting vehicle for home care use for caries prevention in countries where they are used regularly.
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| 2. |
- Kjellberg, Heidrun, 1953, et al.
(författare)
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Condylar height on panoramic radiographs. A methodologic study with a clinical application.
- 1994
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Ingår i: Acta odontologica Scandinavica. - 0001-6357. ; 52:1, s. 43-50
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to develop and apply a reliable method of measuring the effects of condylar lesions quantitatively on panoramic radiographs. Three different types of machines were tested. Two dry skulls were exposed in six positions in each machine, and the relative size of the condyle in relation to ramus height was calculated. The results showed good validity for the reference points used. The head position did not contribute to the variation in the measurements, but the type of panoramic machine had some influence. It was concluded that the method may be applied when calculating condylar ratios, provided that the same panoramic machine is used. The relative height of the condyle in relation to ramus height was measured bilaterally in three groups of children, with either normal or postnormal occlusion or with juvenile chronic arthritis (JCA), to detect possible asymmetries and define differences in the relative condylar height. The JCA group had a significantly shorter relative condylar height, and asymmetries were commoner than in the other two groups.
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| 3. |
- Al Mulla, Anas H, et al.
(författare)
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Caries risk profiles in orthodontic patients at follow-up using Cariogram.
- 2009
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Ingår i: The Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 79:2, s. 323-30
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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.
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| 4. |
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| 5. |
- Al Mulla, Anas H, et al.
(författare)
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The use of cariogram to evaluate caries-risk profiles in orthodontic patients.
- 2010
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Ingår i: World journal of orthodontics. - 1941-6741. ; 11:2, s. 160-167
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Tidskriftsartikel (refereegranskat)abstract
- This article describes the usefulness of Cariogram software in three orthodontic patients with high-, medium-, and low-risk caries profiles. Caries-related indicators and information needed for the Cariogram model were registered. The prebonding decayed and filled surfaces (DFS) indices for patient 1 (15-year-old girl) and patient 2 (18-year-old woman) were > 5, while in patient 3 (15-year-old boy), the DFS index was < 2. The data were entered into the interactive Cariogram software, which shows the various caries-related indicators. Patients 1, 2, and 3 had 6%, 58%, and 87%, respectively, actual chance of avoiding new caries. Patient 1 had high lactobacilli and medium mutans streptococci scores and a high caries risk. Patient 2 had a high DFS index and low buffer capacity, resulting in a medium caries risk. Patient 3 had low mutans streptococci and high lactobacilli scores and a low DFS index, resulting in a low caries risk. The Cariogram is available free online and is a useful educational model to illustrate a patient's caries risk. World J Orthod 2010;11:160-167.
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| 6. |
- Almosa, N. A., et al.
(författare)
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Caries risk profiles in orthodontic patients: A 4-year follow-up study using the Cariogram model in governmental vs. private clinics
- 2018
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Ingår i: Saudi Dental Journal. - : Elsevier BV. - 1013-9052. ; 30:2, s. 166-174
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To (1) analyze caries-related factors and (2) evaluate caries risk using the Cariogram model for governmental and private orthodontic patients at de-bonding and 4 years after de-bonding. Materials and methods: Forty orthodontic patients with mean age of 26.4 years were recruited from a governmental (G) group (n = 20) and private (P) group (n = 20) and were examined at de-bonding (T1) and 4 years after de-bonding (T2). The examination included a questionnaire, plaque scoring, caries examination, bitewing radiographs, and assessment of salivary secretion rate, buffering capacity and cariogenic microorganisms. The data were entered into the Cariogram program to illustrate the caries risk profiles. Results: The chance to avoid new cavities was higher in P-group compared to G-group at T1 (58% and 31%, respectively) (P < 0.01) and T2 (77% and 52%, respectively) (P < 0.001). Plaque index was significantly higher in G-group, and fluoride was used significantly more in P-group at T1 and T2 (P < 0.05). The chance to avoid new cavities was higher at T2 compared to T1 (64% and 44%, respectively) (P < 0.001). Saliva secretion rate and buffer capacity were significantly increased, and the plaque index was significantly decreased at T2 compared to T1 (P < 0.01). Conclusion: According to the Cariogram, orthodontic patients were less likely to avoid new cavities at de-bonding and 4 years after de-bonding in government clinics compared to private clinics, and the caries risk significantly decreased 4 years after orthodontic treatment for all patients, regardless of the location of treatment. (C) 2018 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University.
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| 7. |
- Almosa, Naif Abdullah, 1981, et al.
(författare)
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Diagnosing the severity of buccal caries lesions in governmental and private orthodontic patients at debonding, using the ICDAS-II and the DIAGNOdent Pen.
- 2014
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Ingår i: The Angle orthodontist. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 1945-7103 .- 0003-3219. ; 84:3, s. 430-436
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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.
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| 8. |
- Almosa, Naif Abdullah, 1981, et al.
(författare)
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Diagnosing the severity of buccal caries lesions in orthodontic patients at de-bonding using digital photographs.
- 2014
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Ingår i: Acta odontologica Scandinavica. - : Informa UK Limited. - 1502-3850 .- 0001-6357. ; 72:6, s. 474-480
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Tidskriftsartikel (refereegranskat)abstract
- Abstract Objective. The aims of this study were (1) to evaluate the severity of buccal caries lesions according to the International Caries Detection and Assessment System (ICDAS) criteria via scoring buccal caries lesions on digital photographs at the time of de-bonding and (2) to compare this method with clinical examination. Materials and methods. In total, 89 patients treated with upper and lower fixed appliances were clinically examined immediately after de-bonding by the first author and buccal caries were scored according to the ICDAS-II. Close-up digital photographs were taken of 245 teeth with different buccal caries lesion scores according to the ICDAS-II. Thirteen postgraduate orthodontics students independently scored the buccal caries lesions in the digital photographs using the modified clinical criteria (ICDAS-II). Intra- and inter-examiner reliabilities were evaluated by calculating the weighted kappa. To evaluate the validity of diagnosing the severity of buccal caries lesions using digital photographs compared to clinical examination, Spearman's correlation coefficient was calculated. Results. Intra-examiner reliability and the reliability between each examiner and the clinical examination showed moderate-to-excellent agreement, with kappa values of 0.52-0.83. Scoring buccal caries lesions via clinical examinations and scoring via photographs were well correlated according to the modified ICDAS-II criteria (Spearman's correlation coefficient, 0.76). Conclusions. Thus, scoring buccal caries lesions on digital photographs according to ICDAS-II criteria is a reliable and valid method for assessing the severity of buccal caries lesions.
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| 9. |
- Andrén, Anders, et al.
(författare)
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Pattern and Amount of Change after Orthodontic Correction of Upper Front Teeth 7 Years Postretention.
- 2010
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Ingår i: The Angle Orthodontists. - : The Angle Orthodontist (EH Angle Education & Research Foundation). - 0003-3219 .- 1945-7103. ; 80:4, s. 432-437
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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.
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| 10. |
- Antonarakis, Gregory, et al.
(författare)
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Bite force and its association with stability following Class II/1 functional appliance treatment
- 2013
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Ingår i: European Journal of Orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 35:4, s. 434-441
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Tidskriftsartikel (refereegranskat)abstract
- The aims of this study were to investigate the value of pre-treatment maximal molar bite force as a predictive variable in determining post-treatment changes and stability following functional appliance treatment in Class II malocclusion children. Twenty-eight Class II malocclusion children having undergone functional appliance treatment were followed for at least 1 year post-treatment. Maximal molar bite force measurements, lateral cephalograms, and study casts were taken before treatment, after treatment, and after post-treatment follow-up. Relationships between pre-treatment maximal molar bite force and dental or cephalometric changes post-treatment were examined. Patients were divided into stable and unstable groups, based on dental sagittal changes (overjet and molar relationship), and differences between the two groups of patients determined. Post-treatment changes varied widely. Thirteen children showed dentoalveolar sagittal relapse, namely a shift in molars towards a Class II relationship and an increase in overjet, while 15 did not. The unstable group demonstrated a lower pre-treatment maximal molar bite force, as well as a more obtuse gonial angle, than the stable group. The gonial angle was found to be negatively correlated to maximal molar bite force and may thus be a cephalometric indicator partly reflecting the functional condition of the masticatory muscles. Children with a lower pre-treatment maximal molar bite force were more prone to dentoalveolar sagittal relapse following functional appliance treatment.
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| 11. |
- Antonarakis, Gregory, et al.
(författare)
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Predictive value of molar bite force on Class II functional appliance treatment outcomes
- 2012
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Ingår i: European Journal of Orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 34, s. 244-249
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Tidskriftsartikel (refereegranskat)abstract
- Sagittal intermaxillary changes brought about by functional appliances show large inter-individual variation. One factor that may in part explain these differences is the masticatory musculature and its functional capacity. The aims of this study were to investigate changes in maximal molar bite force during functional appliance treatment and to assess the influence of pre-treatment maximal molar bite force on treatment outcomes with functional appliances used in Class II malocclusion children. Twenty-five children (17 males and 8 females), aged 9-13 years, with a Class II malocclusion and increased overjet were treated with functional appliances for 1-2 years. Dental casts, lateral cephalograms, maximal molar bite force, and finger force measurements were performed before (T1) and after (T2) treatment. These same measurements were also performed 1-2 years before treatment (T0); the intermediate period before starting treatment served as the control. Multiple regression analyses were used to determine possible correlations between initial maximal molar bite force and dental or cephalometric changes during treatment. Maximal molar bite force, which increased pre-treatment (T0-T1), decreased during functional appliance treatment (T1-T2). Children with a weaker T1 maximal molar bite force showed a larger overjet reduction, greater improvement in molar relationship, greater reduction in ANB angle, and greater augmentation in SNB angle from T1 to T2. Treatment of children with Class II malocclusions with functional appliances seems to lead to more favourable treatment outcomes in those with a weaker maximal molar bite force. This was observed both as regards improvements in dental sagittal relationships, namely overjet and molar Class, as well as skeletal changes due to a decrease in ANB and an increase in SNB angles. © The Author 2011. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved.
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| 12. |
- Baeshen, H. A., et al.
(författare)
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Dental caries and risk factors in Swedish adolescents about to start orthodontic treatment with fixed appliances
- 2019
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Ingår i: Journal of Contemporary Dental Practice. - : Jaypee Brothers Medical Publishing. - 1526-3711. ; 20:5, s. 537-542
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Tidskriftsartikel (refereegranskat)abstract
- Aim: The aim of this study is to investigate the caries situation in a group of Swedish adolescents, who were scheduled for orthodontic treatment with fixed appliances. Materials and methods: An age- and gender-matched control group was selected from the same city (Malmö, Sweden). Caries and fillings on smooth surfaces and fillings on occlusal surfaces were diagnosed clinically and caries and fillings on approximal surfaces by bitewings. Numbers of mutans streptococci (MS) and lactobacilli (LB) were analyzed in saliva. Results: There were no significant differences regarding manifest caries lesions and fillings on smooth surfaces. Numbers of occlusal-filled surfaces (FS) and approximal decayed and filled surfaces were around 10%, but did not differ between the groups. However, 53% had approximal enamel caries lesions in the test group and 46% in the control group. The prevalence of approximal decayed surfaces (DS) and FS was low in both groups, 0.57 ± 1.41 in the test group and 0.65 ± 1.38 in the control group (p > 0.05), i.e., somewhat more DS in the control group (p < 0.05). Most individuals had low/medium counts of cariogenic bacteria in their saliva and less than 10% high counts in both groups. Conclusion: Most Swedish adolescents who have been scheduled for treatment with fixed appliances appear to have a low-to-medium caries risk nowadays. However, around 10% of all approximal tooth surfaces of premolars/molars had enamel caries and one-third of the individuals had medium/high counts of cariogenic bacteria in their saliva, which may be risk factors for future caries during orthodontic treatment. © The Author(s).
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| 13. |
- Baeshen, Hosam A, et al.
(författare)
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Oral fluoride retention in orthodontic patients with and without fixed appliances after using different fluoridated home–care products.
- 2010
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Ingår i: Acta Odontologica Scandinavica. - 0001-6357. ; 68:4, s. 185-192
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Tidskriftsartikel (refereegranskat)abstract
- Objective. To evaluate oral fluoride (F) retention after using fluoridated toothpastes, rinsing solutions and chewing sticks (Miswaks) in orthodontic patients with and without orthodontic appliances. Material and methods. Nine orthodontic patients, with a mean age of 16 years, were included in a randomized, cross-over, experimental study. Six different home-care F products, two NaF toothpastes (0.32% and 1.1%), two NaF mouthwash solutions (0.05% and 0.2%) and two NaF-impregnated Miswaks chewing sticks (0.05% and 0.5%), were used both during the orthodontic treatment and 1 week after debonding. Unstimulated whole saliva and approximal saliva were collected from two interdental sites, before and up to 60 min after using each product for 2 min. The retention of F was calculated as the area under the 60-min F-clearance curve (AUC). Results. In general, the F concentrations at the various sites were higher before than after debonding. Moreover, the products with a high F content (toothpaste, mouthwash and Miswaks) resulted in higher F retention than the corresponding products with a lower F content. In whole saliva, the highest AUC values were found in patients using 0.2% NaF mouthwash, followed by 1.1% NaF toothpaste (p <0.05). In approximal saliva, the retention values were highest after using 0.5% NaF-impregnated Miswaks in patients wearing orthodontic appliances (p <0.001). Conclusions. The insertion of fixed orthodontic appliances appears to favor oral F retention for all the tested home-care F products. In addition, products with a high F content increase oral F retention.
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| 14. |
- Baeshen, Hosam A, et al.
(författare)
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Uptake and release of fluoride from fluoride-impregnated chewing sticks (miswaks) in vitro and in vivo.
- 2008
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Ingår i: Caries research. - : S. Karger AG. - 1421-976X .- 0008-6568. ; 42:5, s. 363-8
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Tidskriftsartikel (refereegranskat)abstract
- The purpose was to investigate the uptake and release of fluoride (F) from F-impregnated chewing sticks (miswaks). In the first series, 3-cm-long pieces were impregnated in 1, 2, 3 and 4% NaF solutions for 3 h, 1 day and 3 days (10 pieces/test). There was a dose-response effect with respect to both impregnation time and the concentration of the F solution. In the second and third series, totally 40 miswak pieces were impregnated in 3% NaF for 1 day and 3 days; the outer layer (bark) was separated from the inner spongy part (pulp) and analyzed separately. F was released from both parts, but somewhat more was released from the bark than from the pulp; a plateau was reached at around 30 min. In vivo, 9 healthy subjects used three products for 2 min in a crossover design: (1) a miswak impregnated in 3% NaF for 1 day, (2) a miswak impregnated in 3% NaF for 3 days, and (3) 1 g of F toothpaste (containing 1,450 ppm F as NaF) on a toothbrush. The highest F concentration at the approximal area was obtained after using the miswak impregnated in 3% NaF for 3 days compared with the other products (p < 0.05 or p < 0.01). To conclude, NaF-impregnated miswaks produced a rapid release of F in vitro as well as in vivo and may be an interesting vehicle for home care use for caries prevention in countries where they are used regularly.
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| 15. |
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| 16. |
- Charalampidou, Maria, et al.
(författare)
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Masseter muscle thickness and mechanical advantage in relation to vertical craniofacial morphology in children.
- 2008
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Ingår i: Acta odontologica Scandinavica. - : Informa UK Limited. - 1502-3850 .- 0001-6357. ; 66:1, s. 23-30
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To investigate the relationship between vertical craniofacial morphology and masseter muscle thickness and mechanical advantage in children. MATERIAL AND METHODS: The sample comprised 72 children (36 F, 36 M), 8.5-9.5 years of age, with various malocclusions and no previous orthodontic treatment. The thickness of the masseter was measured bilaterally by means of ultrasonography, and the recordings were performed both in relaxation and under contraction. Mechanical advantage was measured on the lateral cephalograms as the ratio between the masseter moment and the bite force moment arms. Two linear ratios and three angular measurements were used to describe vertical craniofacial morphology. RESULTS: The mean masseter thickness was greater in the male group (p<0.05) in both relaxed and contracted conditions. There were no significant sex differences for the mechanical advantage or for the measurements of vertical craniofacial morphology. In females, there is a positive association between masseter muscle thickness and its mechanical advantage. Multiple regression analysis showed a positive association between posterior to anterior facial height ratio in both genders and a negative association between masseter thickness and the intermaxillary angle in females. CONCLUSIONS: There is a significant association between posterior to anterior facial height and the masseter muscle in children. The importance of the masseter muscle is more evident in the vertical facial morphology of females.
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| 17. |
- Cirgic, Emina, 1978, et al.
(författare)
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Adolescents' experiences of using removable functional appliances
- 2015
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Ingår i: Orthodontics & Craniofacial Research. - : Wiley. - 1601-6335. ; 18:3, s. 165-174
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Tidskriftsartikel (refereegranskat)abstract
- Structured Abstract ObjectivesThe aim of this qualitative study was to explore and describe adolescents experiences of treatment with removable functional appliances. Setting and sample populationPublic Dental Service, Gothenburg, Sweden. Material and methodsIndividual interviews focusing on adolescents' experiences of using a removable functional appliance were held with 21 adolescents (12 girls and nine boys). The mean age of the participants was 13.2years (range 11-15, SD 1.25) at the interview occasion. Interviews were transcribed verbatim and analysed according to a qualitative research approach, phenomenography. ResultsOutcomes of data analysis emerged in five categories with totally 12 subcategories that describe the adolescents' various conceptions of the treatment. The adolescent's experiences of using removable functional appliance appeared to have a large variation, comprising of the individual approach, feelings and strategies, the dentist role and receiving external support. ConclusionParticipants developed their own strategies of measurement to see improvement. An active involvement of the adolescents' in the treatment seems to be needed, supported by the dentist at coming appointments, using overjet measurement as a tool for motivation. Furthermore, efforts should be made by clinicians to listen and understand adolescents' needs and requirement before the treatment start.
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| 18. |
- Cirgic, Emina, 1978, et al.
(författare)
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Treatment of large overjet in Angle Class II: division 1 malocclusion with Andresen activators versus prefabricated functional appliances-a multicenter, randomized, controlled trial
- 2016
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Ingår i: European Journal of Orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 38:5, s. 516-524
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of this study was to compare the clinical effectiveness in reducing large overjet between a prefabricated functional appliance (PFA) and a slightly modified Andresen activator (AA). A multicentre, prospective randomized clinical trial was conducted with patients from 12 general dental practices. One hundred and five patients with an Angle Class II, division 1 malocclusion and an overjet of a parts per thousand yen6mm were eligible for the study. Eight patients were excluded due to various reasons and the sample consisted thus of 97 subjects (44 girls, 53 boys) with a mean age of 10.3 years. The study was designed as intention to treat and the patients were randomly allocated by lottery to treatment with either a PFA or an AA. The PFA and AA group consisted of 57 subjects (28 girls, 29 boys) and 40 subjects (16 girls, 24 boys), respectively. Overjet, overbite, lip seal, and sagittal molar relationship were recorded before, at the end of treatment and 1-year post-treatment. Blinding was not performed. The endpoint of treatment was set to overjet a parts per thousand currency sign3mm and after this a 6 months retention period followed. No significant difference was found in overjet, overbite, sagittal relation, and lip seal between the two groups for the total observation period. The treatment of 40 (70 per cent) patients with PFA and 21 (53 per cent) with AA were considered unsuccessful mainly due to poor compliance. No cephalometric records were taken as only patient-centred clinical outcome were used as an indicator for treatment success. The criteria of reduction of overjet to as low as 3mm could have affected the success rate. No difference in effectiveness could be shown between PFAs and AAs in correcting overjet, overbite, sagittal molar relation, and lip seal. The success rate in treatment with both appliances is, however, low. This trial was registered in "FoU i Sverige" (), registration number: 97131.
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| 19. |
- Engvall, Monica, 1940, et al.
(författare)
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Oral health in children and adolescents with myotonic dystrophy.
- 2007
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Ingår i: European journal of oral sciences. - : Wiley. - 0909-8836 .- 1600-0722. ; 115:3, s. 192-7
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Tidskriftsartikel (refereegranskat)abstract
- Myotonic dystrophy or dystrophia myotonica (DM) is a hereditary neuromuscular multisystem disease with a varying clinical expressivity and severity. The objective of this study was to assess the oral health in children with myotonic dystrophy and to compare it with a control group. Fifty-six DM patients, aged 2.7-18.0 yr, were compared with age- and gender-matched control patients with respect to caries, plaque, and gingivitis. Oral function and signs of temporomandibular dysfunction (TMD) were assessed, and the ability to co-operate in dental treatment was estimated. Questionnaires concerning eating habits, dental care, traumatic injuries to teeth, and orofacial function were also used. The DM patients had significantly more caries, plaque, and gingivitis than did control patients. They had more TMD problems and lower co-operation ability than the healthy control persons. General sedation was frequently needed to carry through dental treatment. DM patients are at risk of caries, gingivitis and TMD problems, and need intensified prophylactic care. Behavior management problems are common.
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| 20. |
- Engvall, Monica, 1940, et al.
(författare)
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Oral health status in a group of children and adolescents with myotonic dystrophy type 1 over a 4-year period.
- 2009
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Ingår i: International journal of paediatric dentistry / the British Paedodontic Society [and] the International Association of Dentistry for Children. - 1365-263X. ; 19:6, s. 412-22
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Tidskriftsartikel (refereegranskat)abstract
- AIM: The aim of this longitudinal study was to evaluate changes in oral health, orofacial function, and dental care in children with myotonic dystrophy type 1 (DM1) in comparison with a control group. METHODS: Thirty-six DM1 patients and 33 control patients out of originally 37 in each group were examined on two occasions about 4 years apart. Caries, plaque, and gingivitis were registered, mouth opening capacity assessed and the ability to cooperate in dental treatment estimated. Questionnaires concerning different aspects of oral health and care, symptoms of temporomandibular dysfunction (TMD), and dental trauma were also used. RESULTS: The DM1-patients, in particular the boys, had significantly more caries, plaque, and gingivitis than the control patients on both occasions and the increase in decayed missing or filled permanent teeth (DMFT) and surfaces (DMFS) was significantly larger. They received more dental care and had lower cooperation ability. Mouth opening capacity and increase of it was significantly lower and symptoms of TMD were significantly more frequent. CONCLUSIONS: DM1 patients, as they grow older, have increasing amounts of plaque and risk of caries and gingivitis. They have more TMD problems. Behaviour management problems do not seem to decrease with age. Increased prophylactic care is essential for DM1 patients.
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| 21. |
- Johnsson, Ann-Cathrin, et al.
(författare)
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Subjective evaluation of orthodontic treatment and potential side effects of bonded lingual retainers.
- 2007
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Ingår i: Swedish dental journal. - 0347-9994. ; 31:1, s. 35-44
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Tidskriftsartikel (refereegranskat)abstract
- The primary aim of this study was to evaluate our patients' experience of their treatment period with a fixed appliance and their opinions about the results five years after completion of active treatment. A second aim was to assess bonded lingual retainers and their potential side effects. A final aim was to compare the results in a postgraduate clinic (Göteborg) and a specialist clinic (Vänersborg). This study included 170 patients who finished their active treatment in 1997-1998. Eighty-three patients were from Göteborg (postgraduate clinic) and 87 from Vänersborg (specialist clinic). The patients were examined for visible calculus, approximal caries in the anterior regions, gingival recessions and the status of existing retainers in the upper and lower anterior teeth. All patients completed a questionnaire and were interviewed after undergoing a clinical examination. The statistical methods used were descriptive analysis and the chi-square test. The main reason for orthodontic treatment was appearance and most patients (94%) were satisfied with their treatment result. Our results showed a significantly higher frequency of loosened or fractured retainers at the postgraduate clinic compared to the specialist clinic (p < 0.01), which might be explained by operator sensitivity in bonding retainers. There was a tendency for calculus to develop more easily with than without retainers. CONCLUSION: Patient satisfaction of the treatment given at the postgraduate clinic was the same as at the specialist clinic except for more frequent loosening of bonded retainers.
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| 22. |
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| 23. |
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| 24. |
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| 25. |
- Kjellberg, Heidrun, 1953, et al.
(författare)
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A longitudinal study of craniofacial growth in idiopathic short stature and growth hormone-deficient boys treated with growth hormone.
- 2007
-
Ingår i: European journal of orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 29:3, s. 243-50
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this prospective, longitudinal, controlled study is to describe the long-term safety and efficacy of growth hormone (GH) administration on craniofacial morphology in boys with short stature. Forty-six boys, who started GH treatment at the Department of Paediatrics G?teborg Paediatric Growth Research Centre, were consecutively included in the study. Twenty-five boys were classified as growth hormone-deficient (GHD) and 21 as idiopathic short stature (ISS). The patients were injected with 33 (n=31) or 67 (n=15) microg GH/kg body weight/day. The mean age at the start of treatment was 11.8 years [standard deviation (SD) 1.7]. To assess craniofacial growth, standard lateral cephalometric radiographs were obtained at the start of GH treatment, annually during 4 years, and at the end of GH treatment or when growth was less than 1 cm/year. The mean follow-up period was 6.4 years (SD 1.4). Growth changes were compared with boys from a semi-longitudinal reference group of 130 healthy subjects, 7-21 years of age. t-tests for independent and paired samples and multiple regression analysis were applied. Age- and gender-specific standard deviation scores for the cephalometric variables were calculated. Repeated measures analysis of variance was used to identify significant covariates over time, such as low/high GH dose and GHD/ISS and orthodontic treatment. During the study period, eight (out of 40) boys were treated with fixed orthodontic appliances, three with functional appliances (activators), and three with other appliances (plates and lingual arches). During GH treatment period, an overall enhancement in growth of the facial skeleton was observed in boys with short stature. The changes induced by GH yielded a more prognathic growth pattern, a more anterior position of the jaws in relation to the cranial base, and increased anterior rotation of the mandible. The mandibular corpus length and anterior face height of the GH-treated boys were greater at the end of the study compared with the boys in the reference group. No differences in growth response were noted either between the GHD and ISS boys or between those treated with either 33 (low dose) or 67 (high dose) microg GH/kg body weight/day. The only change that remained significantly correlated with orthodontic treatment was the alteration in mandibular ramus height, showing a larger change in the boys who had not undergone orthodontic therapy. The findings of this study demonstrate that GH treatment has a favourable influence on the craniofacial growth pattern of boys with short stature without acromegalic features.
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| 26. |
- Kjellberg, Heidrun, 1953, et al.
(författare)
-
Changes in the cervical spine of children with juvenile idiopathic arthritis evaluated with lateral cephalometric radiographs A case control study
- 2011
-
Ingår i: The Angle Orthodontist. - 0003-3219. ; 81:3, s. 447-452
-
Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To evaluate whether plain lateral cephalometric radiographs in the neutral position could be used as a diagnostic tool to investigate changes in the cervical spine related to juvenile idiopathic arthritis (JIA). MATERIALS AND METHODS: Lateral cephalometric radiographs of 82 subjects, 21 males and 61 females (8-25 years old), affected with JIA were revised and compared with 82 healthy control subjects matched in age and gender. Changes inspected in the cervical spine were erosions of the dens and fusion of the apophyseal joints. Anterior atlantoaxial subluxation of the first vertebra in relation to the second was examined by measuring the anterior atlanto-dens interval (aADI). Atlantoaxial impaction (AAI) was studied by using the Sakaguchi-Kauppi method. RESULTS: In the JIA sample, erosion was seen in 14.7%, (12 patients), of the patients and apophyseal joint ankylosis (fusion) in 18.3%, (15 patients). Three children and one adult had aADI more than 4.5 or 3 mm, respectively, which is considered to be abnormally increased, and AAI was noted in 13.0% of the subjects. In total, 35%, (29 children), of the children with JIA showed one or several radiographically visible changes as described earlier. Two of the control subjects showed ankylosis of the apophyseal joints, and one had aADI of 4 mm. Compared with the controls, significantly more changes were found in the JIA group. CONCLUSION: It can be concluded that arthritic changes in the cervical spine can be detected at a young age on plain lateral cephalometric radiographs and should be evaluated when available.
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| 27. |
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| 28. |
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| 29. |
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| 30. |
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| 31. |
- Kjellberg, Heidrun, 1953
(författare)
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Käkleden-en speciell led vid reumatiska sjukdomar hos barn
- 2008
-
Ingår i: Barnreumatologi Redaktörer: Stefan Hagelberg, Boel Andersson-Gäre, Anders Fasth, Bengt Månsson, Yvonne Enman. - : Studentlitteratur. - 9789144033884 ; , s. 89-92
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 32. |
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| 33. |
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| 34. |
- 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.
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| 35. |
- Naoumova, Julia, et al.
(författare)
-
Extraction of the deciduous canine as an interceptive treatment in children with palatal displaced canines - part I: shall we extract the deciduous canine or not?
- 2015
-
Ingår i: European Journal of Orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 37:2, s. 209-218
-
Tidskriftsartikel (refereegranskat)abstract
- Objectives: To analyse whether extraction of the deciduous canines facilitates eruption of the palatal displaced canines (PDCs), and to analyse root resorption in adjacent teeth caused by the PDCs. Materials and methods: Eligibility criteria for participants were as follows: children at age 10-13 years with either maxillary unilateral or bilateral PDC, persisting deciduous canine and no previous experience of orthodontic treatment. Sixty-seven patients (40 girls and 27 boys; age: mean +/- standard deviation: 11.4 +/- 1.0) with unilateral (45) or bilateral (22) PDCs were consecutively recruited and randomly allocated using permuted block randomization method to extraction or non-extraction. No patients dropped out after the randomization or during the study. Patients underwent a clinical examination and cone beam computed tomography at baseline (T0), after 6 (T1) and 12 months (T2). The total observation time was 24 months. Outcome measures were eruption, positional changes, length of time until eruption, and root resorption of adjacent teeth. The baseline images were measured blinded while the 6- and 12-month control images were not, since it was not possible to blind the extracted canine. Results: Significantly more spontaneous eruptions of the PDCs were seen in the extraction group (EG) than in the control group (CG), with rates of 69 and 39 per cent, respectively, with a mean eruption time of 15.6 +/- 5.6 months in the EG and 18.8 +/- 5.8 months in the CG. Significant differences in changes between the groups, in favour of the EG, were found for all variables except for the sagittal angle. In the EG, the changes in the distances of the canine cusp-tip were larger during the first 6 months, while the change of apex was larger between 6 and 12 months. There were no significant differences in resorption of adjacent teeth between the groups. Limitations: Imputation values were used for the PDCs who had erupted at T2, since no x-rays were taken for ethical reasons, which might have given uncertainty in the positional changes between T1 and T2. Conclusions: Extraction of the deciduous canine is an effective treatment in patients with PDCs. Significantly more positional changes and shorter mean eruption time were seen in the EG. Resorptions of lateral incisors were seen in both groups, but none exceeded grade 2 (resorption up to half of the dentine thickness to the pulp). Registration: This trial was registered in "FoU i Sverige" (http://www.fou.nu/is/sverige), registration number: 40921.
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| 36. |
- Naoumova, Julia, et al.
(författare)
-
Extraction of the deciduous canine as an interceptive treatment in children with palatally displaced canines - part II: possible predictors of success and cut-off points for a spontaneous eruption
- 2015
-
Ingår i: European Journal of Orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 37:2, s. 219-229
-
Tidskriftsartikel (refereegranskat)abstract
- Aim: To analyse factors affecting the success rate of palatally displaced canines (PDCs) and eruption time and to find cut-off points to predict when interceptive extraction is beneficial versus unnecessary. Materials and methods: Sixty-seven patients, 40 girls, 27 boys (10-13 years) with uni- (45) or bilateral (22) PDCs, persisting deciduous canine and no previous orthodontic treatment were randomly allocated for extraction or non-extraction using the block randomization method. There were no dropped out after the randomization or during the trial. Clinical examination and cone beam computed tomography was performed at 0, 6, and 12 months. Blinded measurements were done on baseline images. Results: Erupted PDCs had a significantly smaller mesioangular angle, shorter distance of canine cusp tip-dental arch plane, and larger distance of canine cusp tip-midline, and the patients were younger compared to the non-erupted group. Faster eruption was noted of PDCs in the extraction group. Spontaneous eruption was achieved without prior deciduous canine extraction with cutoff points: initial canine cusp tip-midline of 11 mm, canine cusp tip-dental arch plane of 2.5 mm, or a mesioangular angle of 103 degrees. PDCs with a less favourable position, i.e. an initial cusp tip-midline of 6 mm, a canine cusp tip-dental arch plane of 5 mm, or a mesioangular angle of 116 degrees, will need surgical exposure despite interceptive extraction of the deciduous canine. The canine cusp tip-midline had the best predictive measure for assessing the outcome. Limitations: Decision on where to place the cut-off points may differ from one operator to another, therefore results from several studies are needed to get average cut-off points. Conclusions: Deciduous canine extraction is the variable that affects the spontaneous eruption of the canine most. Canine cusp tip-midline, canine cusp tip-dental arch plane, and mesioangular angle might be useful for distinguishing when an interceptive extraction of the deciduous canine is beneficial or when exposure of the PDC should be implemented without previous interceptive treatment. Registration: This trial was registered in 'FoU i Sverige' (http://www.fou.nu/is/sverige), registration number: 40921.
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| 37. |
- Naoumova, Julia, et al.
(författare)
-
Pain, discomfort, and use of analgesics following the extraction of primary canines in children with palatally displaced canines
- 2012
-
Ingår i: International Journal of Paediatric Dentistry. - 0960-7439 .- 1365-263X. ; 22, s. 17-26
-
Tidskriftsartikel (refereegranskat)abstract
- Background. Pain following the extraction of the primary canine in children with palatally displaced canines (PDC) as an interceptive treatment has not been investigated. Aims. To describe pain, discomfort, dental anxiety, and use of analgesics following the extraction of primary canines in children with PDC. Design. Forty-four children, aged 10-13 with PDC, were included. Pain intensity, discomfort, and analgesic consumption were rated the first evening and 1week after the extraction of the primary canine. Dental anxiety was assessed pre-extraction, using the dental anxiety scale (DAS). A matched reference group also completed the DAS. Results. No significant differences were found between the study and the reference group regarding the pre-extraction assessments. Post-extraction pain and discomfort was low. The experience of the injection was graded worse than the extraction, and more pain was rated at the evening post-extraction than during the extraction. Analgesics were used only the first evening. High correlation was detected between DAS and pain during injection and extraction. Conclusions. The experience of pain and discomfort during and after extraction of the primary canines is low, despite that 42% of the children used analgesics. Therefore, appropriate analgesics and recommendation doses pre- and post-extraction should be prescribed. © 2011 The Authors. International Journal of Paediatric Dentistry © 2011 BSPD, IAPD and Blackwell Publishing Ltd.
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| 38. |
- Naoumova, Julia, et al.
(författare)
-
The use of panoramic radiographs to decide when interceptive extraction is beneficial in children with palatally displaced canines based on a randomized clinical trial
- 2018
-
Ingår i: European journal of orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 40:6, s. 565-574
-
Tidskriftsartikel (refereegranskat)abstract
- Objective: To evaluate which palatally displaced canines (PDCs) benefit from interceptive extraction of the deciduous canine, to assess possible side effects from the extraction, and to analyse other dental deviations in patients with PDCs. Design, settings, participants, and intervention: A sample of 67 patients (40 girls, mean age: 11.3 +/- 1.1; 27 boys, mean age +/- SD: 11.4 +/- 0.9) with unilateral (45) or bilateral (22) PDCs were consecutively recruited and randomly allocated to extraction or non-extraction using block randomization. No patients dropped out after randomization or during the study. The patients were given a clinical examination and panoramic radiographs were taken at baseline and after 6 (T1) and 12 months (T2). An individual therapy plan was made for the PDCs that had not erupted at T2. Measurements were performed blindly and the outcome measures were: canine position and angulation, root development, midline shift, rotation, or movement of adjacent teeth into the extraction site, and frequency of other dental deviations. Results: Interceptive deciduous canine extraction is beneficial if the alpha angle is between 20 and 30 degrees. A PDC located in sector 4 with an alpha angle >30 degrees should have immediate surgical exposure, while canines angulated less than 20 degrees and located in sector 2 can be observed without prior interceptive extraction. Deciduous canine extraction was more beneficial in younger patients with less advanced root development. Minor side effects, such as rotation or migration of teeth into the extraction space, were observed in 15 out of 35 patients. A majority of the patients had other dental deviations than PDC in the dentition. Limitations: The results are only valid for patients with no space deficiency in the maxilla and with PDCs located in sector 2-4. Conclusions: The alpha angle and sector position are good diagnostic predictors of when interceptive extraction is beneficial. Minor side effects are seen after the extraction and the majority of the patients had other dental deviations too.
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| 39. |
- Naraghi, Sasan, et al.
(författare)
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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
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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.
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| 40. |
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| 41. |
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| 42. |
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| 43. |
- Rizell, Sara, 1963, et al.
(författare)
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45,X/46,XX karyotype mitigates the aberrant craniofacial morphology in Turner syndrome
- 2013
-
Ingår i: European Journal of Orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 35:4, s. 467-474
-
Tidskriftsartikel (refereegranskat)abstract
- The aim of this project was to study the impact on craniofacial morphology from Turner syndrome (TS) karyotype, number of intact X chromosomal p-arms, and age as well as to compare craniofacial morphology in TS with healthy females. Lateral radiographs from 108 females with TS, ranging from 5.4 to 61.6 years, were analysed. The TS females were divided into four karyotype groups: 1. monosomy (45,X), 2. mosaic (45,X/46,XX), 3. isochromosome, and 4. other, as well as according to the number of intact X chromosomal p-arms. The karyotype was found to have an impact on craniofacial growth, where the mosaic group, with presence of 46,XX cell lines, seems to exhibit less mandibular retrognathism as well as fewer statistically significant differences compared to the reference group than the 45,X karyotype. Isochromosomes had more significant differences versus the reference group than 45,X/46,XX but fewer than 45,X. To our knowledge, this is the first time the 45,X/46,XX and isochromosome karyotypes are divided into separate groups studying craniofacial morphology. Impact from p-arm was found on both maxillary and mandibular length. Compared to healthy females, TS expressed a shorter posterior and flattened cranial base, retrognathic, short and posteriorly rotated maxilla and mandible, increased height of ramus, and relatively shorter posterior facial height. The impact of age was found mainly on mandibular morphology since mandibular retrognathism and length were more discrepant in older TS females than younger.
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| 44. |
- Rizell, Sara, 1963, et al.
(författare)
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Altered inorganic composition of dental enamel and dentin in primary teeth from girls with Turner syndrome.
- 2010
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Ingår i: European journal of oral sciences. - : Wiley. - 1600-0722 .- 0909-8836. ; 118:2, s. 183-90
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Tidskriftsartikel (refereegranskat)abstract
- In Turner syndrome (TS) one X-chromosome is missing or defective. The amelogenin gene, located on the X-chromosome, plays a key role during the formation of dental enamel. The aim of this study was to find support for the hypothesis that impaired expression of the X-chromosome influences mineral incorporation during amelogenesis and, indirectly, during dentinogenesis. Primary tooth enamel and dentin from girls with TS were analysed and compared with the enamel and dentin of primary teeth from healthy girls. Qualitative and quantitative changes in the composition of TS enamel were found, in addition to morphological differences. Higher frequencies of subsurface lesions and rod-free zones were seen in TS enamel using polarized light microscopy. Similarly, scanning electron microscopy showed that the enamel rods from TS teeth were of atypical sizes and directions. Using X-ray microanalysis, high levels of calcium and phosphorus, and low levels of carbon, were found in both TS enamel and dentin. Using microradiography, a lower degree of mineralization was found in TS enamel. Rule induction analysis was performed to identify characteristic element patterns for TS. Low values of carbon were the most critical attributes for the outcome TS. The conclusion was that impaired expression of the X-chromosome has an impact on dental hard tissue formation.
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| 45. |
- Rizell, Sara, 1963, et al.
(författare)
-
Functional appliance treatment outcome and need for additional orthodontic treatment with fixed appliance.
- 2006
-
Ingår i: Swedish dental journal. - 0347-9994. ; 30:2, s. 61-8
-
Tidskriftsartikel (refereegranskat)abstract
- The objectives of this study were to investigate (1) the results of treatment with functional appliances in mixed dentition run by general practitioners, (2) factors associated with a final treatment result of overjet of > or = 5 mm and (3) the need of additional treatment with fixed appliances. The study was designed as a retrospective, cross sectional survey and conducted in one of the Public Dental Clinics and the Orthodontic Clinic in Lidk?ping, Sweden. 122 patients (aged 7.6 -13.2 years) with an overjet of > or = 7 mm and consecutively collected for treatment with functional appliance therapy. Patient files were analysed with regard to gender, age, initial class II severity, type of functional appliance, co-operation, overall growth, number of missed appointments and treatment time. The treatment results were studied and correlated with the above-mentioned variables. The need for additional treatment with fixed appliances was evaluated. A final overjet of < or = 5 mm was observed in 61.5% of the patients, 48.4% interrupted treatment prematurely and 33.6% received additional treatment with fixed appliances. Good co-operation and extended treatment time was found to be correlated with a final overjet of < or = 5 mm. Other factors not associated with treatment outcome were age, gender, overjet, overbite, molar relation, type of functional appliance, overall growth and number of missed appointments. Activator treatment was successful in reducing overjet to 5 mm or less in almost two thirds of the treated patients. Mainly because of poor functional appliance treatment results or relapse, one third of the patients were retreated with fixed appliance. Since good co-operation is one of the main factors for successful treatment outcome, evaluation of the motivational level of both the parents and the patient before treatment start is crucial.
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| 46. |
- Rizell, Sara, 1963, et al.
(författare)
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Palatal height and dental arch dimensions in Turner syndrome karyotypes
- 2013
-
Ingår i: European Journal of Orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 35:6, s. 841-847
-
Tidskriftsartikel (refereegranskat)abstract
- The aim of this project was to study the impact from Turner syndrome (TS) karyotype and age on dental arch morphology and palatal height and to compare the variables in TS with reference data from non-TS females with normal occlusion. Plaster casts from 76 females with TS (6-50 years) were analysed with respect to dentoalveolar arch dimensions and palatal height. The TS females were divided into the karyotype categories: i) 45, X ii) 45, X/46, XX iii) isochromosome, and iv) other. The 45, X/46, XX karyotype exhibited fewer statistically significant variables differing from the reference group compared with other karyotypes. TS females showed increased dentoalveolar depths, decreased maxillary but increased mandibular width, decreased posterior segments, and decreased mandibular circumference compared with the reference group. In opposition to previous reports, the palatal height did not differ compared with non-TS females. Age had an impact on nine of the variables. We conclude that the present dental arch deviations are reflecting the high frequency of malocclusions reported in TS and the subsequent need for orthodontic treatment, which might possibly be lower in the 45, X/46, XX karyotype. The palatal height did not differ from the reference group, but instead the narrow maxilla might contribute to an illusion of a higher palate. We therefore suggest using the nomination 'narrow palatal vault' instead of the commonly used term 'high palatal vault'.
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| 47. |
- Rizell, Sara, 1963, et al.
(författare)
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Turner syndrome isochromosome karyotype correlates with decreased dental crown width
- 2012
-
Ingår i: European Journal of Orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 34:2, s. 213-218
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this project was to study possible influences of Turner syndrome (TS) karyotype and the number of X chromosomes with intact short arm (p-arm) on dental crown width. Primary and permanent mesio-distal crown width was measured on plaster casts from 112 TS females. The influence on crown width of four karyotypes: 1. monosomy (45,X), 2. mosaic (45,X/46,XX), 3. isochromosome, and 4. other, and the number of intact X chromosomal p-arms were investigated. In comparisons between karyotypes, statistically significant differences were found for isochromosome karyotype maxillary second premolars, canines, laterals, mandibular first premolars, and canines, indicating that this karyotype was the most divergent as shown by the most reduced crown width. When each karyotype group were compared versus controls, all teeth in the isochromosome group were significantly smaller than controls (P < 0.01-0.001). The 45,X/46,XX karyotype expressed fewer and smaller differences from controls, while 45,X individuals seemed to display an intermediate tooth width compared with 45,X/46,XX and isochromosomes. No significant difference in crown width was found comparing the groups with one or two intact X chromosomal p-arms. Both primary and permanent teeth proved to have a significantly smaller crown width in the entire group of TS females compared to healthy females. We conclude that the isochromosome group deviates most from other karyotypes and controls, exhibiting the smallest dental crown width, while individuals with 45,X/46,XX mosaicism seemed to have a less affected crown width. An influence of the number of intact p-arms on crown width could not be demonstrated in this study.
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| 48. |
- Sepanian, V. F., et al.
(författare)
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A long-term controlled follow-up study of objective treatment need on young adults treated with functional appliances
- 2014
-
Ingår i: Swedish Dental Journal. - : Swedish Dental Journal. - 0347-9994. ; 38:1, s. 39-46
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Tidskriftsartikel (refereegranskat)abstract
- The aims of this study were to 1) evaluate the objective success rate of Class II malocclusion treatment with functional appliances five years after completion of treatment and 2) to compare the remaining objective treatment need with an untreated control group. Records of all listed patients between 18-20 years (n=1054) treated in a general practice were reviewed for the purpose of finding treatments with removable functional appliances. Among all subjects (n=61) who previously had been treated, 58 accepted to participate in the study.The test group was matched with an orthodontically untreated group with no history of objective treatment need. Clinical, examination was performed and study casts and photos were taken from both groups. The objective treatment need was evaluated through clinical examination and study cast analysis with weighted Peer Assessment Rating index (wPAR). Twenty patients,.(34.5 %) (mean wPAR 13.8), succeeded with the functional appliance treatment.The wPAR score (mean 15.o) of the entire test group was significantly higher than the one of the control group (mean 7.3).The group that was treated exclusively with functional appliances had a mean wPAR score of 17.4. Eighteen patients (31.0 %) who received retreatment with fixed appliances had a slightly higher mean wPAR (8.6) than the control group. Treatments with functional appliances in a general practice showed a high failure rate and a remaining treatment need. It is the treating dentist's responsibility to motivate the patient to cooperate to the treatment, because as it previously has been shown the treatment with functional appliances is a well-functioning treatment alternative with the cooperation of the patient being sufficient. It is also of importance, already before starting treatment, to estimate the child's cooperation ability and to avoid treatment with removable appliances if the child or parents are reluctant about such a treatment.
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| 49. |
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| 50. |
- Westerlund, Anna, 1970, et al.
(författare)
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Bonded retainers maintain a high-standard orthodontic treatment outcome long term
- 2015
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Ingår i: Journal of the World Federation of Orthodontists. - : Elsevier BV. - 2212-4438. ; 4:2, s. 78-84
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Tidskriftsartikel (refereegranskat)abstract
- Background: Numerous studies have demonstrated deterioration of orthodontic treatment outcome postretention; however, few studies present results in cases still in retention long term. The aim of the present study was to evaluate orthodontic treatment outcomes in patients with teeth still in retention at 10 years post-treatment. Methods: This longitudinal study enrolled 108 children who received bonded lingual retainers after treatment with a full fixed appliance. Retainer extension and morphologic stability, as measured by weighted peer assessment ratings (wPAR), were recorded at pretreatment (t0), immediately post-treatment (t1), 5 years post-treatment (t5), and 10 years post-treatment (t10). The t10 results were compared with those from an untreated control group matched on age and sex. Post-treatment stability was additionally tested for correlation to age, sex, malocclusion, and extraction therapy. Results: At the group level, there was a significant mean reduction in wPAR of 74% at t10 (P < 0.001). Additionally, the mean wPAR was significantly better than was that in the control group. At the patient level, 57% of patients were categorized as "greatly improved." The only factor that could be correlated to post-treatment changes (from t1 to t10) was the presence of at least one bonded retainer ( P < 0.05). Conclusion: A "high standard orthodontic treatment outcome" could be maintained 10 years post-treatment by keeping the bonded retainers in both the upper and lower arches. Orthodontic patients expect the aesthetics to be maintained over time. The results from this study, that bonded lingual retainers maintain the orthodontic treatment result for 10 years, are valuable information for the clinician when giving the patients advice and recommendations regarding retainer maintenance. © 2015 World Federation of Orthodontists.
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