| 1. |
- Miyahara, Takayuki, et al.
(författare)
-
A novel dual material mouthguard for patients with dental implants.
- 2013
-
Ingår i: Dental traumatology : official publication of International Association for Dental Traumatology. - : Wiley. - 1600-9657 .- 1600-4469. ; 29:4, s. 303-306
-
Tidskriftsartikel (refereegranskat)abstract
- AIM: Dental implant-supported reconstructions demonstrate significantly less physiological flexibility for loading and traumatic forces compared with a normal dentition because of their rigid integration with the adjacent bone. Ethylene vinyl acetate (EVA) material has become widely accepted as a mouthguard material; however, many studies indicate the necessity of improving the impact absorption ability by considering the design and developing new materials. The aim of this study was to compare the shock-absorbing ability of a novel dual component material comprising EVA and porous rubber with that of EVA alone. MATERIALS AND METHODS: Three groups of samples were tested: Group 1=EVA (thickness, 4mm), Group 2=type 1 material (2-mm thick porous rubber sheet sandwiched between two sheets of 1-mm thick EVA sheets), and Group 3=type 2 material (1-mm thick porous rubber sheet sandwiched between EVA sheets with 1 and 2-mm thickness, respectively). Shock absorption was determined by means of a hammer impact testing device equipped with strain gauge, accelerator, and load cell. RESULTS: The value of shock-absorbing ability of group 2 (40.6±12.5%) was significantly higher than those of group 1 (15.6±2.1%) and group 3 (21.2±9.2%). The material with thicker rubber sheet showed significantly higher shock-absorbing ability compared with that of the material with thinner rubber sheet. CONCLUSIONS: The novel dual material was superior to conventional EVA material in shock-absorbing ability depending on the thickness of porous rubber, and it may be potentially effective as mouthguard material, in particular, for patients wearing implant-supported constructions.
|
|
| 2. |
|
|
| 3. |
|
|
| 4. |
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
- Glendor, Ulf
(författare)
-
Has the education of professional caregivers and lay people in dental trauma care failed?
- 2009
-
Ingår i: DENTAL TRAUMATOLOGY. - : Wiley. - 1600-4469 .- 1600-9657. ; 25:1, s. 12-18
-
Forskningsöversikt (övrigt vetenskapligt/konstnärligt)abstract
- Several reports have been published during the past decades showing a lack of care of traumatic dental injuries (TDIs) as well as dentists and lay people having insufficient knowledge on how to manage TDIs. This situation could seriously affect the outcome of TDIs, especially a complicated TDI. The overall aim of this study was to present a review of dental trauma care with focus on treatment and dentists and lay persons lack of knowledge on how to manage a TDI. A further aim is to introduce the actors involved and the outcome of their education. The databases Medline, Cochrane, SSCI, SCI and CINAHL from the year 1995 to the present were used. Focus was on treatment need, inadequate care, lack of knowledge and poor organization of emergency care. Studies from different countries demonstrated that treatment needs were not properly met despite the fact that not all untreated teeth needed treatment. Treatment in emergency dental care was often inadequate or inappropriate. With the exception of lay people, teachers, medical personnel and even dentists performed inadequate care. Furthermore, information to the public was insufficient. Despite a low level of knowledge, lay people expressed a strong interest in helping someone with a TDI. The conclusion from this review is that consideration must be given the problematic results from different studies on education or information about dental trauma care. Despite that the studies reviewed were from different countries and groups of people, the results seem to be consistent, i.e. that a large part of the educational process of professional caregivers and lay people has failed. Too much hope seems to be put on lay people to handle difficult cases such as tooth avulsion. Education of caregivers and lay people is a field where much remains to be explored.
|
|
| 8. |
- Malmgren, B., et al.
(författare)
-
International Association of Dental Traumatology guidelines for the management of traumatic dental injuries: 3. Injuries in the primary dentition
- 2012
-
Ingår i: Dental Traumatology. - : Wiley. - 1600-4469. ; 28:3, s. 174-182
-
Tidskriftsartikel (refereegranskat)abstract
- Traumatic injuries to the primary dentition present special problems and the management is often different as compared with the permanent dentition. The International Association of Dental Traumatology (IADT) has developed a consensus statement after a review of the dental literature and group discussions. Experienced researchers and clinicians from various specialities were included in the task group. In cases where the data did not appear conclusive, recommendations were based on the consensus opinion or majority decision of the task group. Finally, the IADT board members were giving their opinion and approval. The primary goal of these guidelines is to delineate an approach for the immediate or urgent care for management of primary teeth injuries. The IADT cannot and does not guarantee favorable outcomes from strict adherence to the guidelines, but believe that their application can maximize the chances of a positive outcome.
|
|
| 9. |
|
|
| 10. |
|
|
| 11. |
- Cvek, Miomir, et al.
(författare)
-
Conservative Endodontic Treatment of Teeth Fractured in the Middle or Apical Part of the Root
- 2004
-
Ingår i: Dental Traumatology. - : Wiley. - 1600-4469 .- 1600-9657. ; 20:5, s. 261-269
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- According to treatment type, root-fractured teeth with pulp necrosis or exposed pulps were divided into five groups, group 1: 17 teeth in which the root canal of the coronal fragment only was filled with gutta-percha (GP); group 2: seven teeth in which the root canals of the coronal and apical fragments were both filled with GP; group 3: 19 teeth in which the coronal fragment was filled with GP and the apical fragment was surgically removed; group 4: 68 teeth where the root canal of the coronal fragment was treated with calcium hydroxide and subsequently filled with GP; and group 5: five vital teeth with root and concomitant crown fractures in which the exposed pulps were treated by partial pulpotomy. The frequency of periodontal healing was 76% in group 1, zero in group 2, 68% in group 3 and 86% in group 4. Compared with groups 1 and 2 combined, healing in group 4 was significantly more frequent. In groups 1, 2 and 4, failures occurred sig-nificantly more often in teeth showing overfilling, i.e. protrusion of GP into the space between the fragments, compared with teeth without overfilling. All five teeth in group 5 showed healing. It was concluded that root canal filling with GP of the coronal fragment only, with or without surgical removal of the apical fragment, can be successful in selected cases. Treatment of the root canal with calcium hydroxide followed by GP filling appears to be the treatment of choice in root-fractured non-vital teeth. Partial pulpotomy of exposed pulps in five teeth showed results similar to root-unfractured teeth with pulp exposure treated with this technique.
|
|
| 12. |
|
|
| 13. |
|
|
| 14. |
|
|
| 15. |
- Fridström, Margareta, et al.
(författare)
-
Evaluating Emdogain and healing of replanted teeth using an intra-individual experimental-control study design
- 2008
-
Ingår i: Dental Traumatology. - : Wiley. - 1600-4469 .- 1600-9657. ; 24, s. 299-304
-
Tidskriftsartikel (refereegranskat)abstract
- The purpose of the present investigation was to use an intra-individual experimental-control study design to explore if application of Emdogain prior to re-plantation after a dry extra-alveolar period of 60 min would promote a favorable healing of the periodontal ligament cells. Ten patients, for whom already decisions had been taken to extract two maxillary premolars because of crowding, participated in the study. The teeth were extracted and endodontic treatment was performed extra orally. The experimental tooth and its alveolar socket were covered with Emdogain prior to replantation. The contra lateral tooth served as a control and was replanted without any prior treatment. The teeth were stabilized with a retainer for 3-7 days and the patients were followed up every third week. After 13 weeks, the teeth were finally extracted and prepared for histological examination. Radiographs were taken before the study period, at day 29 and prior to the final extraction. The results were in favor of Emdogain, but the overall difference between the Emdogain-treated tooth and its control was rather small, and it seemed questionable if the registered differences could be of any obvious practical clinical importance. Histologically, all the teeth showed some degree of pathology after such a long dry extra-oral time and the outcome seemed to be more correlated to the individual than to the treatment. Given more favorable conditions regarding storage medium and/or extra-oral time, Emdogain might still be of value for an uncomplicated healing after replantation.
|
|
| 16. |
- Glendor, Ulf
(författare)
-
Aetiology and risk factors related to traumatic dental injuries - a review of the literature
- 2009
-
Ingår i: DENTAL TRAUMATOLOGY. - : Wiley. - 1600-4469 .- 1600-9657. ; 25:1, s. 19-31
-
Forskningsöversikt (övrigt vetenskapligt/konstnärligt)abstract
- During the past 30 years, the number of aetiologies of traumatic dental injuries (TDIs) has increased dramatically in the literature and now includes a broad spectrum of variables, including oral and environmental factors and human behaviour. The aim of this study is to present an international review of well-known as well as less well-known unintentional and intentional causes of TDIs. Moreover, some models that are useful in investigating contact sport injuries are presented. The databases of Medline, Cochrane, Social Citation Index, Science Citation Index and CINAHL from 1995 to the present were used. Oral factors (increased overjet with protrusion), environmental determinants (material deprivation) and human behaviour (risk-taking children, children being bullied, emotionally stressful conditions, obesity and attention-deficit hyperactivity disorder) were found to increase the risk for TDIs. Other factors increasing the risk for TDIs are presence of illness, learning difficulties, physical limitations and inappropriate use of teeth. A new cause of TDIs that is of particular interest is oral piercing. In traffic facial injury was similar in unrestrained occupants (no seat belts) and occupants restrained only with an air bag. Amateur athletes have been found to suffer from TDIs more often than professional athletes. Falls and collisions mask intentional TDIs, such as physical abuse, assaults and torture. Violence has increased in severity during the past few decades and its role has been underestimated when looking at intentional vs unintentional TDIs. There are useful models to prevent TDIs from occurring in sports. WHO Healthy Cities and WHO Health Promoting Schools Programmes offer a broad solution for dental trauma as a public health problem. The number of known causes of TDIs has grown to alarming levels, probably because of increased interest of the causes and the underlying complexity of a TDI. Accepted oral, environmental and human aetiological factors must therefore be included in the registration of TDIs.
|
|
| 17. |
- Glendor, Ulf, et al.
(författare)
-
Direct and indirect time spent on care of dental trauma : a 2-year prospective study of children and adolescents
- 2000
-
Ingår i: Endodontics and dental traumatology. - : Wiley. - 0109-2502 .- 1600-4469 .- 1600-9657. ; 16:1, s. 16-23
-
Tidskriftsartikel (refereegranskat)abstract
- The aim was to account for the total time spent by professional care-givers (direct time) and by patients and companions engaged as support and help (indirect time) to treat and otherwise attend to children and adolescents with dental trauma to primary and permanent teeth. The study was based on a random sample of 192 children and adolescents with dental traumas reported to an insurance company and prospectively followed up by telephone interviews over a period of 2 years after the trauma episode. On average, direct time represented 16% of total time for all visits for dental trauma to permanent teeth and 11% for trauma to primary teeth. The most extensive type of indirect time was transport time, which took up 30% of the total time spent on injuries to permanent teeth and 36% for injuries to primary teeth. Multiple regression analysis of the impact of dental and demographic injury variables on the time variables showed that complicated trauma was associated with extended time, direct as well as indirect, for permanent and primary teeth injuries. Our estimate of the average relative increase in total time spent by patients and companions in cases of complicated injury to permanent teeth was 117% (95% confidence interval [CI], 52-211) for patients and 112% (95% CI, 42-217) for companions. For transport time a strong predictor was access to a dental clinic near the place of residence. Lack of access could extend the average transport time by 180% (95% CI, 80-335) for patients and 163% (95% CI, 67-317) for their companions in cases of injuries to primary teeth.
|
|
| 18. |
- Glendor, Ulf
(författare)
-
Epidemiology of traumatic dental injuries--a 12 year review of the literature
- 2008
-
Ingår i: Dental traumatology. - : Wiley. - 1600-4469 .- 1600-9657. ; 24:6, s. 603-611
-
Forskningsöversikt (refereegranskat)abstract
- Several reports have been published during the past decades showing a lack of care of traumatic dental injuries (TDIs) as well as dentists and lay people having insufficient knowledge on how to manage TDIs. This situation could seriously affect the outcome of TDIs, especially a complicated TDI. The overall aim of this study was to present a review of dental trauma care with focus on treatment and dentists and lay persons lack of knowledge on how to manage a TDI. A further aim is to introduce the actors involved and the outcome of their education. The databases Medline, Cochrane, SSCI, SCI and CINAHL from the year 1995 to the present were used. Focus was on treatment need, inadequate care, lack of knowledge and poor organization of emergency care. Studies from different countries demonstrated that treatment needs were not properly met despite the fact that not all untreated teeth needed treatment. Treatment in emergency dental care was often inadequate or inappropriate. With the exception of lay people, teachers, medical personnel and even dentists performed inadequate care. Furthermore, information to the public was insufficient. Despite a low level of knowledge, lay people expressed a strong interest in helping someone with a TDI. The conclusion from this review is that consideration must be given the problematic results from different studies on education or information about dental trauma care. Despite that the studies reviewed were from different countries and groups of people, the results seem to be consistent, i.e. that a large part of the educational process of professional caregivers and lay people has failed. Too much hope seems to be put on lay people to handle difficult cases such as tooth avulsion. Education of caregivers and lay people is a field where much remains to be explored.
|
|
| 19. |
- Hallman, Mats, et al.
(författare)
-
Bone replacement following dental trauma prior to implant surgery--status.
- 2009
-
Ingår i: Dental traumatology : official publication of International Association for Dental Traumatology. - : Wiley. - 1600-9657 .- 1600-4469. ; 25:1, s. 2-11
-
Tidskriftsartikel (refereegranskat)abstract
- Dento-alveolar trauma often leads to a need for reconstruction of the alveolar crest before an implant can be placed. Although autogenous bone grafts is considered the 'gold standard', this may be associated with patient morbidity and graft resorption. Consequently, the use of bone substitutes has increased. Today, a substantial number of biomaterials are available on the market, but only a few are well documented. The user should be aware that these biomaterials have different properties: resorbable or non-resorbable, time of resorption and resorption mechanism. The purpose of this review is to describe the function of various bone substitutes and indications for their use in reconstructive implant surgery and to give an overview of the current situation.
|
|
| 20. |
- Kamburoğlu, Kivanç, et al.
(författare)
-
Effectiveness of limited cone-beam computed tomography in the detection of horizontal root fracture
- 2009
-
Ingår i: Dental Traumatology. - : Wiley. - 1600-9657 .- 1600-4469. ; 25:3, s. 256-61
-
Tidskriftsartikel (refereegranskat)abstract
- To compare the diagnostic accuracy of conventional film radiography, charge coupled device (CCD) and photostimulable phosphor plate (PSP) digital images and limited cone-beam computed tomography in detecting simulated horizontal root fracture. Root fractures were created in the horizontal plane in 18 teeth by a mechanical force and fragments were relocated. Another 18 intact teeth with no horizontal root fracture served as a control group. Thirty-six teeth were placed in the respective empty maxillary anterior sockets of a human dry skull in groups three by three. Intraoral radiographs were obtained in three different vertical views by utilizing Eastman Kodak E-speed film, CCD sensor, RVG 5.0 Trophy and a PSP sensor Digora, Optime. Cone beam CT images were taken with a unit (3D Accuitomo; J Morita MFG. Corp, Kyoto, Japan). Three dental radiologists separately examined the intraoral film, PSP, CCD and cone beam CT images for the presence of horizontal root fracture. Specificity and sensitivity for each radiographic technique were calculated. Kappa statistics was used for assessing the agreement between observers. Chi-square statistics was used to determine whether there were differences between the systems. Results were considered significant at P < 0.05. Cone beam CT images revealed significantly higher sensitivities (P < 0.05) than the intraoral systems between which no significant differences were found. Specificities did not show any statistically significant differences between any of the four systems. The kappa values for inter-observer agreement between observers (four pairs) ranged between 0.82–0.90 for the 3DX evaluations and between 0.63–0.71 for the different types of intraoral images. Limited cone beam CT, outperformed the two-dimensional intraoral, conventional as well as digital, radiographic methods in detecting simulated horizontal root fracture.
|
|
| 21. |
- Magunacelaya, Macarena B, et al.
(författare)
-
Surfing for mouth guards : assessing quality of online information
- 2011
-
Ingår i: Dental Traumatology. - : John Wiley and Sons. - 1600-4469 .- 1600-9657. ; 27:5, s. 334-343
-
Tidskriftsartikel (refereegranskat)abstract
- Introduction: The Internet is an easily accessible and commonly used source of health-related information, but evaluations of the quality of this information within the dental trauma field are still lacking. Aim: The aims of this study are (i) to present the most current scientific knowledge regarding mouth guards used in sport activities, (ii) to suggest a scoring system to evaluate the quality of information pertaining to mouth guard protection related to World Wide Web sites and (iii) to employ this scoring system when seeking reliable mouth guard-related websites. Materials and methods: First, an Internet search using the keywords athletic injuries/prevention and control and mouth protector or mouth guards in English was performed on PubMed, Cochrane, SvedMed+ and Web of Science to identify scientific knowledge about mouth guards. Second, an Internet search using the keywords consumer health information Internet, Internet information public health and web usage-seeking behaviour was performed on PubMed and Web of Science to obtain scientific articles seeking to evaluate the quality of health information on the Web. Based on the articles found in the second search, two scoring systems were selected. Then, an Internet search using the keywords mouth protector, mouth guards and gum shields in English was performed on the search engines Google, MSN and Yahoo. The websites selected were evaluated for reliability and accuracy. Results: Of the 223 websites retrieved, 39 were designated valid and evaluated. Nine sites scored 22 or higher. The mean total score of the 39 websites was 14.2. Fourteen websites scored higher than the mean total score, and 25 websites scored less. The highest total score, presented by a Public Institution Web site (Health Canada), was 31 from a maximum possible score of 34, and the lowest score was 0. Conclusion: This study shows that there is a high amount of information about mouth guards on the Internet but that the quality of this information varies. It should be the responsibility of health care professionals to suggest and provide reliable Internet URL addresses to patients. In addition, an appropriate search terminology and search strategy should be made available to persons who want to search beyond the recommended sites.
|
|
| 22. |
|
|
| 23. |
- Mordenfeld, Arne, et al.
(författare)
-
Tissue reactions to subperiosteal onlays of demineralized xenogenous dentin blocks in rats.
- 2011
-
Ingår i: Dental traumatology : official publication of International Association for Dental Traumatology. - : Wiley. - 1600-9657 .- 1600-4469.
-
Tidskriftsartikel (refereegranskat)abstract
- Abstract- Objectives: This study was undertaken to examine the influence of partial demineralization of xenogenous dentin on bone formation in an osteoconductive environment. Materials and methods: Sixty dentin blocks, 2-3mm thick and 4mm in diameter, were prepared from developing teeth of young pigs. Forty blocks were demineralized in 24% ethylenediaminetetraacetic acid (pH 7.0) for 1, 2, 6 or 12h. Forty adult rats divided into eight groups with five rats in each group were used. A sagittal midcranial incision was made from the occipital to the frontal region. Through a subperiostal dissection, a pocket was created on each side of the skull. One demineralized block was placed on one side, and a non-demineralized block was placed on the contralateral side, or the pocket was left empty as controls. Thus, eight experimental groups with five rats in each were formed. Results: Resorption increased significantly with increasing degree of demineralization while bone formation increased significantly with increasing degree of demineralization, provided inflammation was compensated for. This suggests an important role for inflammation or infection control during the healing period of osteogenic implants to optimize osseous integration in an osteoconductive environment. Conclusion: Partial demineralization of xenogenous dentin blocks may provide a method for optimizing the integration of dentin onlays in an osteoconductive environment, thus stabilizing the implant and slowing down replacement resorption.
|
|
| 24. |
|
|
| 25. |
- Schatz, Jean-Paul, et al.
(författare)
-
Prevalence of traumatic injuries to permanent dentition and its association with overjet in a Swiss child population.
- 2013
-
Ingår i: Dental traumatology : official publication of International Association for Dental Traumatology. - : Wiley. - 1600-9657. ; 29:2, s. 110-114
-
Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: Dental trauma is a very common issue in dentistry and its occurrence has been related to many factors. The aim of this study was to evaluate the prevalence of traumatic dental injuries in the permanent dentition among Swiss children and its association with overjet. MATERIAL AND METHODS: A sample of 1900 children aged 6-13years was prospectively evaluated to determine the number and types of injuries, the influence of overjet on the risk of suffering trauma and the relationships between trauma, age, gender and life conditions. RESULTS: The observed prevalence of trauma was higher for boys, with a slight risk increase with age and a peak frequency at the age of 10years. Most of the injuries (91.2%) involved the upper front teeth; 87.2% of all injuries were hard tissue injuries (enamel or dentin fractures), and 12.8% only subluxation and luxation injuries. Children with an overjet of 6mm or more had a four times higher risk of suffering trauma, compared with those with less overjet. CONCLUSION: This cross-sectional study confirmed most of the results from earlier studies dealing with epidemiological factors of dental injuries to the permanent dentition. Of all the variables analysed, overjet stood out as the most significant risk factor: an increased overjet of 6mm or more had a major impact on the risk of trauma, which would speak in favour of early orthodontic correction of an increased overjet to reduce the prevalence of dental trauma.
|
|
| 26. |
- Thor, Andreas, et al.
(författare)
-
Fracture of the tympanic plate with soft tissue extension into the auditory canal resulting from an unfavorable chewing experience
- 2010
-
Ingår i: Dental Traumatology. - : Wiley. - 1600-4469 .- 1600-9657. ; 26:1, s. 112-114
-
Tidskriftsartikel (refereegranskat)abstract
- We present a case where a patient sustained a tympanic plate fracture of the right side while chewing a sandwich. Intense pain with temporomandibular joint (TMJ) symptoms such as restrained painful mouth opening and functional pain in full occlusion followed the incident and the fracture was diagnosed after ocular and CT-examination of the right external auditory canal. Non-ruptured soft tissue could be seen protruding into the external auditory canal and the size of the mass changed during movement of the TMJ. Treatment was not needed to resolve the situation and at 3-year follow-up the patient has no clinical symptoms.
|
|
| 27. |
|
|
| 28. |
|
|
| 29. |
- Widar, Fredrik, et al.
(författare)
-
A retrospective evaluation of iatrogenic dental root damage with predrilled vs drill-free bone anchor screws for intermaxillary fixation.
- 2012
-
Ingår i: Dental traumatology. - : Wiley. - 1600-9657 .- 1600-4469. ; 28:2, s. 127-131
-
Tidskriftsartikel (refereegranskat)abstract
- Abstract- Aims:The aim of this study was to retrospectively evaluate iatrogenic dental root damage, caused by two different techniques that utilized bone anchor screws, for intermaxillary fixation (IMF) in orofacial trauma. Materials and methods:The techniques used included either predrilled or drill-free bone anchor screws. A total of 123 patients who required IMF were evaluated (97 men and 26 women). Sixty-four patients were treated in the predrilled group, and 59 patients were treated in the drill-free group. The data were collected over an 8-year period and were analyzed using crosstabs and Fisher's exact test. Results:Injuries to dental roots were found only in the predrilled group. Twenty-nine patients (45.3%) were injured at the time of surgery. One year after surgery, 10 patients (15.6%) had permanently injured dental roots. There was a significant difference in injury rates between the predrilled and drill-free groups 1year after surgery (P<0.001). Conclusion:There is an increased potential risk of iatrogenic injury and permanent damage to the dental roots when a technique that involves predrilled holes for bone anchor screws is used.
|
|
| 30. |
- Al-Asfour, Adel, et al.
(författare)
-
Host tissue reactions of non-demineralized autogenic and xenogenic dentin blocks implanted in a non-osteogenic environment. An experimental study in rabbits.
- 2014
-
Ingår i: Dental traumatology : official publication of International Association for Dental Traumatology. - : Wiley. - 1600-9657. ; 30:3, s. 198-203
-
Tidskriftsartikel (refereegranskat)abstract
- Dentoalveolar ankylosis with osseous replacement is often seen after replantation of avulsed teeth, and this process may be used for preservation of alveolar crests after trauma. Its exact mechanisms with regard to osteoinductive properties are not yet fully understood and need to be systematically investigated. Dentin can possibly act as a slow-releasing carrier of bone morphogenic proteins (BMP), and this property of dentin has been proposed to be used as an alternative or supplement to bone grafting in the maxillofacial region. We aimed to initially asses host tissue reactions to dentin by implanting dentin blocks of autogenic and xenogenic human origin in rabbit connective tissue of the abdominal wall and femoral muscle. Animals were sacrificed after a period of 3months, and histological processing, sectioning and examinations were carried out. Bone formation, cell counts and thickness of capsule surrounding the grafts were evaluated. Only minor signs of heterotopic bone formation were seen. There were no significant differences between autografts and xenografts or grafts implanted in connective tissue or muscle with regards to tissue reactions except for a significant difference (P=0.018) in findings of more local inflammatory cells in relation to grafts placed in connective tissue in the autograft group. We conclude that during the time frame of this study, non-demineralized dentin, whether autogenous or xenogenic did not have the potential to induce bone formation when implanted in non-osteogenic areas such as the abdominal wall and abdominal muscle of rabbits.
|
|
| 31. |
- Albertsson, Josefin, et al.
(författare)
-
The risks of ankylosis of 89 avulsed human teeth stored in saliva prior to replantation-A re-evaluation of a long-term clinical study
- 2021
-
Ingår i: Dental Traumatology. - : John Wiley & Sons. - 1600-4469 .- 1600-9657. ; 37:4, s. 537-545
-
Tidskriftsartikel (refereegranskat)abstract
- Background/Aim: The survival of an avulsed tooth highly depends on the emergency management. The aim of this study was to evaluate the risk of ankylosis for avulsed human teeth stored in saliva preceded by various dry storage conditions prior to replantation. Material and methods: Data include 74 patients (54 male and 20 female) with 89 avulsed and replanted teeth (16 immature teeth, 73 mature teeth). Patient ages ranged from 6 to 36 years (median: 13.0 years). All teeth were stored in saliva before replantation. Treatment and follow-up were performed according to a standardized procedure. Follow-up periods ranged from 7 months to 20 years (mean 5.3 years). The risk of ankylosis over time was estimated by the Aalen-Johansen method in relation to the length of dry storage and the stage of root development. The effect of risk factors (root development and length of dry time) on the risk of ankylosis was analysed by Cox regression analysis. Results: For mature teeth, dry storage for 5 min or less before saliva storage resulted in a 47.4% (95% confidence interval (CI): 32.8-60.7) ankylosis rate. When dry storage was >5 min and <20 min, the risk of ankylosis was 76.8% (95% CI: 45.7-91.5). When dry storage exceeded 20 min prior to saliva storage, ankylosis increased to 89.3% (95% CI: 68.0-96.7). Ankylosis also increased with increasing saliva storage time. Specifically, one additional minute of wet time increased the ankylosis hazard rate (HR) by approximately 1% (CI = [0%, 2%], p = .052). Teeth with mature root development were significantly more frequently affected by ankylosis than teeth with immature root development (HR: 2.4 (95% CI: 1.0-5.5), p = .04). Conclusion: Temporary storage in saliva should be encouraged if an avulsed permanent tooth cannot be immediately replanted or a suitable storage medium such as milk or saline is not immediately available at the place of the accident.
|
|
| 32. |
|
|
| 33. |
- Andersson, Lars, et al.
(författare)
-
Dr Ulf Glendor has left us at age 71 OBITUARY
- 2020
-
Ingår i: Dental Traumatology. - : John Wiley & Sons. - 1600-4469 .- 1600-9657. ; 36:3, s. 217-217
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
|
|
| 34. |
- Andersson, Lars, et al.
(författare)
-
Jens Ove Andreasen, 1935-2020 Father of Dental Traumatology.
- 2021
-
Ingår i: Dental Traumatology. - : John Wiley & Sons. - 1600-4469 .- 1600-9657. ; 37:1, s. 4-16
-
Tidskriftsartikel (refereegranskat)abstract
- The life and professional contributions to dental traumatology of Dr. Jens Ove Andreasen are described in terms of his research, writing, teaching, and leadership.
|
|
| 35. |
|
|
| 36. |
|
|
| 37. |
- Eden, Ece, et al.
(författare)
-
Eden Baysal Dental Trauma Index : Face and content validation
- 2020
-
Ingår i: Dental Traumatology. - : John Wiley & Sons. - 1600-4469 .- 1600-9657. ; 36:2, s. 117-123
-
Tidskriftsartikel (refereegranskat)abstract
- Recording of traumatic dental injuries in the emergency situation with a simple and easily recordable index that will also enable computer registration is advantageous. The aim of this paper is to present a new index to facilitate recording traumatic dental injuries and assess its face and content validity. Materials and methods The index included information on the type of injury related to the affected structures (enamel, dentin, cement, pulp, periodontal ligament, and alveolar bone) in accordance with Andreasen's classification. In addition, injuries to the alveolar bone and the maturity of the root were included. Fifteen dental trauma experts from 11 different countries rated the codes and content of the “Eden Baysal Dental Trauma Index” using the RAND modified e‐Delphi consensus method. A statement was considered valid after reaching 75% consensus among panel members. Two rounds were necessary for reaching consensus on seven statements and the definition. The last version of the index was then presented online to a feedback group that included 10 experts from five countries to determine the external validity by representative cases. Results The wording of the definition showed 92.8% agreement in the first round. Statements 1 and 2 gave information about the structure of the index and both reached 90% agreement in the first round. Definition and statements from 1 to 7 reached agreement as 93.3%, 93.3%, 100%, 93.3%, 80%, 93.3%, 80%, and 93.3%, respectively, in the second round. Most of the experts in the feedback group reported that the index was useful and user‐friendly. Conclusion After a total of two rounds with the panel members and one round with the feedback group, the “Eden Baysal Dental Trauma Index” was approved for face and content validity and external validity was obtained.
|
|
| 38. |
|
|
| 39. |
|
|
| 40. |
- Glendor, Ulf
(författare)
-
Attitudes towards the use of mouth and face guards in Swedish ice hockey: part 2. Results
- 2013
-
Ingår i: Dental Traumatology. - : Wiley-Blackwell. - 1600-4469 .- 1600-9657. ; 29:6, s. 432-444
-
Tidskriftsartikel (refereegranskat)abstract
- Background/AimThe yearly cost of sports injuries, which affects Swedish society, is estimated to 3billion SEK (460 million USD). Injuries in ice hockey represent at least 270 million SEK (42 million USD). Despite the high number of injuries, mouth and face guards are rarely used in Swedish ice hockey. The major aim of this study was to examine the attitudes of mouth and face guards in two ice hockey clubs in Sweden (one elite and one division 3 club). A second purpose was to determine why some players use mouth and face guards, while others do not. A third goal was to present a material that ice hockey clubs could use for further discussions. less thanbrgreater than less thanbrgreater thanMaterials and methodA phenomenographic analysis of focus groups interviews. less thanbrgreater than less thanbrgreater thanResultsThe phenomenographic analysis of the data resulted in 12 categories. Within each category, issues, activities and engagement of the participants were described. Further, similarities and differences in the discussions between the elite club and the division 3 club were described. The following categories were found to engage the participants the most: Ice hockey is a high-velocity collision sport in which injuries are expected, Attitudes towards personal protection guards and Suggested measures. less thanbrgreater than less thanbrgreater thanConclusionsThe participants were aware of the risk of playing ice hockey, but they know little about the consequences of a dental injury. Although ice hockey players wish to protect themselves, they refuse to accept just any mouth or face guard. Through the discussions about reducing dental and jaw injuries by routine use of protection devices, many reform proposals were presented that could be useful in future discussions.
|
|
| 41. |
- Glendor, Ulf, et al.
(författare)
-
Attitudes towards the use of mouth and face guards in Swedish ice hockey: part I. Materials and method
- 2013
-
Ingår i: Dental Traumatology. - : Wiley-Blackwell. - 1600-4469 .- 1600-9657. ; 29:5, s. 355-359
-
Tidskriftsartikel (refereegranskat)abstract
- Background/aimThe most common method to study the use and attitudes of mouth and face guards is a limited number of preprepared questions. This approach, however, risks information restriction and lowers the general value of the study. The aim of this study was therefore to present a phenomenographic approach to capture the use and attitudes towards mouth and face guards in two Swedish ice hockey clubs. less thanbrgreater than less thanbrgreater thanMaterials and methodThe phenomenographic study was set up as 12 focus group interviews: six interviews with one elite and six interviews with one division 3 ice hockey club in Sweden. A number of categories were identified, which became the basis for how the results are presented. less thanbrgreater than less thanbrgreater thanResultsThe participants inspired each other to speak freely, which allowed for much wider and deeper discussions than was expected. In comparison with the use of a preprepared questionnaire with a limited number of questions sent home by post, this method included comments from the participants and revealed new angles of approach in 12 identified categories. less thanbrgreater than less thanbrgreater thanConclusionsUsing a phenomenographic research method, more variations and different apprehensions could be revealed than what would be possible with a set of preprepared questions sent by post or used in individual interviews.
|
|
| 42. |
- Gul, Abdulaziz, et al.
(författare)
-
Risk of ankylosis of avulsed teeth immediately replanted or stored under favorable storage conditions before replantation : A long-term clinical study
- 2024
-
Ingår i: Dental Traumatology. - : John Wiley & Sons. - 1600-4469 .- 1600-9657. ; 40:2, s. 137-143
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND/AIM: There are few long-term clinical follow-up studies on human teeth replanted immediately or after storage in a suitable storage medium prior to replantation. This study aimed to assess the risk of ankylosis in avulsed human teeth replanted immediately or after storage in physiological media for a short time.MATERIAL: Data from 116 patients with 145 replanted avulsed permanent teeth were selected from a comprehensive dental trauma database in Copenhagen University Hospital. The following teeth were selected: Group 1 comprised 36 teeth replanted immediately (dry time <6 min; wet time <6 min). Group 2 comprised 61 teeth replanted after physiologic storage media (saliva and saline) (dry time <6 min; wet time >5 min; wet time ranged from 7 to 170 min, and mean wet time was 59 min). Group 3 (control) included 48 teeth replanted after dry storage (dry time > 60 min).METHOD: Clinical and radiographic registrations were carried out according to a standardized protocol; follow-up ranged from 7 months to 23 years. Ankylosis was diagnosed by percussion test and radiographs and related to the conditions prior to replantation and stage of root development.RESULTS: The overall risk of ankylosis was 17.2% [95% CI: 4.61; 29.79] for immediately replanted teeth, 55.3% [95% CI: 42.54; 68.00] for teeth stored in physiologic media before replantation, and 85.7% [95% CI: 75.70; 95.73] for teeth stored dry more than 1 h. Mature teeth showed a significantly higher risk of ankylosis than immature teeth.CONCLUSION: This clinical long-term study has verified earlier experimental studies showing that immediate reimplantation has the lowest risk of ankylosis. Physiologic storage media are good alternatives that also reduce the risk of ankylosis compared to dry storage, where ankylosis is more likely although not always seen. Mature teeth are significantly more likely to develop ankylosis.
|
|
| 43. |
- Isaksson, Helén, 1965-, et al.
(författare)
-
Effect of splinting times on the healing of intra-alveolar root fractures in 512 permanent teeth in humans : A Scandinavian multicenter study
- 2021
-
Ingår i: Dental Traumatology. - : John Wiley & Sons. - 1600-4469 .- 1600-9657. ; 37:5, s. 672-676
-
Tidskriftsartikel (refereegranskat)abstract
- Background/AimLong-term splinting of teeth with intra-alveolar root fractures has been considered important for the deposition of hard tissue between the root fragments. The aim of this study was to compare the healing outcomes in teeth with intra-alveolar root fractures relative to splinting times in three dental centers in Scandinavia, using historical data.Materials and methodsA total of 512 maxillary and mandibular incisors from three dental trauma centers were included in the study. Two of the centers used long-term splinting protocols of two to three months while the other center used a short-term splinting protocol of one month or less. Three outcomes were evaluated: (1) Healing with hard tissue (dentin and/or cementum). (2) Healing with connective tissue (periodontal ligament) interposition with or without bone between the fragments. (3) Non-healing due to the coronal pulp being necrotic and infected with granulation tissue interposed between the fragments.ResultsThe mean splinting times were 18, 81, and 110 days in the three centers. Long-term splinting resulted in hard tissue healing more frequently than short-term splinting. Short-term splinting resulted in more connective tissue/bony healing than long-term splinting, while there was no difference in the frequency of non-healing between long-term and short-term splinting protocols.ConclusionsWhile the results suggest that long-term splinting favors hard tissue deposition, one cannot, however, conclude that long-term splinting definitely favors hard tissue healing since the treatment protocols were not randomized among the three centers. More clinical studies on the role of splinting time need to be done.
|
|
| 44. |
|
|
| 45. |
- Kenny, Kate P, et al.
(författare)
-
What are the important outcomes in traumatic dental injuries? An international approach to the development of a core outcome set.
- 2018
-
Ingår i: Dental Traumatology. - : John Wiley & Sons. - 1600-4469 .- 1600-9657. ; 34:1, s. 4-11
-
Tidskriftsartikel (refereegranskat)abstract
- Background/Aims: There are numerous treatment options following traumatic dental injury (TDI). Systematic reviews of different treatments are challenging owing to the diversity of outcomes reported between clinical studies. This issue could be addressed through the development and implementation of a agreed and standardized collection of outcomes known as a core outcome set (COS). The aim of this study was to develop a COS for TDI in children and adults. The secondary aim was to establish what, how, when and by whom these outcomes should be measured. Materials and Method: The project was registered with Core Outcomes Measures in Effectiveness Trials (COMET). A web‐based survey was developed to capture the opinions of dentists globally as to which outcomes should be recorded. A list of outcomes was entered into a Delphi Survey and scored by an Expert Working Group (EWG). The scoring was repeated, followed by conference calls to discuss, refine and finalize the COS. The EWG split into small groups of subject‐specific experts to determine how, when and by whom each outcome would be measured. Results: The questionnaire was completed by 1476 dentists. The EWG identified 13 core outcomes to be recorded for all TDI's. An additional 10 injury‐specific outcomes were identified. A table has been produced for each outcome detailing what, when, and how each outcome should be recorded. Conclusions: A robust consensus process was used to develop an international COS for TDI in children and adults. This includes both generic and injury‐specific outcomes across all identified domains.
|
|
| 46. |
- Kevci, Mir, et al.
(författare)
-
The risk of healing complications in primary teeth with root fractures : A retrospective cohort study
- 2023
-
Ingår i: Dental Traumatology. - : John Wiley & Sons. - 1600-4469 .- 1600-9657. ; 39:5, s. 455-461
-
Tidskriftsartikel (refereegranskat)abstract
- Background/aim: Primary teeth are frequently affected by traumatic dental injuries. Root fractures are rare and have a reported incidence of 2% in the primary dentition. Hence, there is limited evidence on this topic. This study aims to evaluate the risk of healing complications in primary teeth with root fracture and to identify possible sequelae in the permanent dentition following root fracture in the primary dentition.Materials and methods: A retrospective analysis of a cohort of 53 patients with 74 root fractured primary teeth. The standard follow-up program included clinical and radiographic examination after 4 weeks, 8 weeks, 6 months, and 1 year after the trauma and when the patient was 6 years of age. The following complications were registered: pulp necrosis (PN), pulp canal obliteration (PCO), ankylosis with replacement root resorption (ARR), infection-related root resorption (IRR), premature tooth loss (PTL), and repair-related resorption (RRR).Statistics: The Kaplan-Meier and Aalen-Johansen estimators were employed. The level of significance was 5%.Results: A total of 74 teeth were included. 42 teeth were extracted at the initial examination. Risks estimated after 3 years: PTL 45.9% [95% CI: 28.8-63.0], PCO 12.9% [95% CI: 2.3-23.4], PN 14.9% [95% CI: 3.9-25.9], RRR 2.6% [95% CI: 0.0-7.5]. No teeth showed ARR or IRR. All complications were diagnosed within the first year. Most common sequelae in the permanent dentition was demarcated opacities, with an estimated risk of 20% [95% CI: 8.2-41.3].Conclusions: There is a low risk of healing complications following a root fracture in the primary dentition. Root fractures often result in early extraction of the coronal fragment. The remaining apical fragment will undergo a physiological resorption. Aside from opacities, there is a low risk of sequelae in the permanent dentition.
|
|
| 47. |
- Lauridsen, Eva, et al.
(författare)
-
Risk of ankylosis of 400 avulsed and replanted human teeth in relation to length of dry storage : A re-evaluation of a long-term clinical study
- 2020
-
Ingår i: Dental Traumatology. - : John Wiley & Sons. - 1600-4469 .- 1600-9657. ; 36:2, s. 108-116
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND/AIMS: Ankylosis and subsequent tooth loss is a serious complication following tooth avulsion and replantation. The aim of the study was to evaluate the risk of ankylosis of human teeth replanted after various periods of dry storage prior to replantation. The material originates from a previously reported clinical study of 400 replanted teeth. METHODS: Initial treatment, clinical and radiological examination and follow-up were conducted according to a standardized protocol. PDL was not removed. Follow-up periods ranged from 0.2 to 20 years (mean 5.1 years). The risk of ankylosis was analysed using the Cox regression model including stage of root development, length of dry time and age > 20 years. RESULTS: The risk of ankylosis significantly increased with increasing length of dry time (hazard ratio: 1.22, P = .002) and was significantly higher for teeth with mature root development than for teeth with immature root development (hazard ratio: 2.1 P < .0001). The estimated risks of ankylosis after 900 days for teeth with immature root development were: dry time < 20 minutes: 33.9% (95% confidence interval (CI): 25.4-42.7), dry time 20-40 minutes: 49.6% (95% CI: 37.5-64.8), dry time 40-60 minutes: 54.4% (95% CI: 37.1-71.3) and dry time > 60 minutes: 60.0% (95% CI: 45.0-75.8). The risks for teeth with mature root development were: dry time < 20 minutes: 59.4% (95% CI: 51.6-66.5), dry time 20-40 minutes: 78.3% (95% CI: 69.5-86.2), dry time 40-60 minutes: 81.9% (95% CI: 67.2-92.4) and dry time > 60 minutes: 86.4% (95% CI: 79.7; 92.9). CONCLUSION: The risk of ankylosis rose with increasing length of dry time. However, some teeth may heal without ankylosis even after 60 minutes of dry time. Immature teeth have a lower risk of developing ankylosis. Replantation should therefore always be considered for avulsed teeth.
|
|
| 48. |
- Lexomboon, Duangjai, et al.
(författare)
-
Incidence and causes of dental trauma in children living in the county of Varmland, Sweden
- 2016
-
Ingår i: Dental Traumatology. - : Wiley. - 1600-4469 .- 1600-9657. ; 32:1, s. 58-64
-
Tidskriftsartikel (refereegranskat)abstract
- AimThe aims of this study were to determine the incidence of injuries to permanent incisors in 2011-2013 in children aged 8-10years living in the county of Varmland, Sweden, and to compare it with the incidence rates in 1989/1990 in the county of Vastmanland, as well as to determine the cause of dental trauma in relation to time and place. MethodThe study analysed the patient records from dental visits (2011-2013) of trauma to the permanent incisors in children aged 8-10years. The incidence rates were the incidence per 1000 children at risk. Standardized incidence rates were calculated for the comparison between different years. Information about month, location where the trauma occurred as well as cause of trauma was recorded. ResultsA total of 2.2% of 21721 children aged 8-10years had experienced at least one trauma. The incidence rate in Varmland increased from 18.9 in 2011 to 21.3 in 2012 to 28.5 in 2013. The standardized incidence rate in Varmland in 2011 and 2012 was not significantly different than in Vastmanland in 1989/1990 (P>0.05), but the standardized rates in 2013 were significantly higher than in 1989/90 (P<0.001). Dental trauma occurred most often outdoors, followed by sports arenas/sports fields, and more often at school than at home. Falling and slipping was the most common cause of trauma, followed by accidents during leisure activities, playing and sports. ConclusionThe incidence rate for dental trauma has not decreased in the past 20years, and there is an indication that parents and teachers should be more aware of the risks of dental trauma at leisure times and at school as well as during sports and exercise.
|
|
| 49. |
|
|
| 50. |
- Maslamani, Manal, et al.
(författare)
-
Effect of periodontal ligament removal with gauze prior to delayed replantation in rabbit incisors on rate of replacement resorption
- 2018
-
Ingår i: Dental Traumatology. - : John Wiley & Sons. - 1600-4469 .- 1600-9657. ; 34:3, s. 182-187
-
Tidskriftsartikel (refereegranskat)abstract
- Background/AimDelayed (dry storage > 60minutes) replantation results in ankylosis and replacement resorption. It has been suggested to remove the non-viable periodontal ligament before replantation to possibly reduce the rate of replacement resorption. However there has been no study on the rate of replacement resorption after such measures. The aim of this study was to investigate if there was any difference in the rate of replacement resorption by either removing the periodontal ligament (PDL) with gauze or not removing PDL in teeth subjected to delayed replantation followed by healing for 2 or 6weeks. Materials and MethodsMaxillary central incisors were extracted in 8 rabbits. In the right central incisors, the necrotic PDL was removed by dry gauze over the root surface. In the left eight extracted teeth PDL was left on the root surface. All extracted teeth were left to dry for 60minutes. Extra-oral root canal treatment was performed before replantation. The rabbits were sacrificed after 2weeks and 6weeks respectively. Histologic processing and evaluation was done. ResultsIn the 2weeks group, all teeth showed ankylosis. The cementum was intact, and fusion of the bone and root was generally seen without resorption of the root, whereas in the 6weeks group regardless of whether PDL had been kept or not, ankylosis and osseous replacement of the dentin was seen. There was no evidence of inflammatory infiltrate in the sections examined. ConclusionRemoval of PDL prior to delayed replantation may result in some initial protection of the cementum during the first few weeks. However, over longer times there seems to be neither protection of the dentin from ankylosis and osseous replacement, nor any influence on the rate of replacement resorption.
|
|
