Comparison of the Effects of Intraradicular Materials on the Incidence of Fatal Root Fracture in Immature Teeth Treated with Mineral Trioxide Aggregate Apexification: A Retrospective Study
| Autor: | Yaowaluk Ngoenwiwatkul, Danuchit Banomyong, Lalida Ongchavalit, Patcharin Porkaew, Supatra Danwittayakorn |
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| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Mineral trioxide aggregate Dentistry Root Canal Filling Materials 03 medical and health sciences Tooth Fractures 0302 clinical medicine Statistical significance Medicine Humans Tooth Root Aluminum Compounds General Dentistry Survival rate Retrospective Studies biology business.industry Proportional hazards model Apexification Incidence (epidemiology) Incidence Silicates Hazard ratio Oxides 030206 dentistry Gutta-percha Calcium Compounds biology.organism_classification Drug Combinations 030104 developmental biology business |
| Zdroj: | Journal of endodontics. 45(8) |
| ISSN: | 1878-3554 |
| Popis: | Introduction This study aimed to compare the incidence of root fractures that led to extraction in immature teeth endodontically treated by mineral trioxide aggregate (MTA) apexification and were restored with either reinforced (resin composite or fiber post) or nonreinforced (gutta percha or MTA) intraradicular materials. Methods Necrotic immature teeth treated with MTA apexification from 1996 to 2017 were selected according to the inclusion and exclusion criteria. Intraradicular materials and preoperative and treatment factors were obtained from dental charts and radiographs. The incidence of fatal root facture was identified. Kaplan-Meier survival analysis and the Cox proportional hazard model were used to show the survival rate and predisposing factors at a significance level of .05. Results The average recall period was 30 months. The incidence of root fracture in the teeth restored with the reinforced materials was 5.5%, which was not significantly different from the nonreinforced materials (8.3%). Furthermore, the fracture rates between the fiber post and resin composite groups were not significantly different. Two significant predisposing factors influencing the incidence of root fracture were detected: preoperative external inflammatory root resorption (hazard ratio = 26.86; P 15 years (hazard ratio = 8.60, P Conclusions Immature teeth treated with MTA apexification and restored with the reinforced or nonreinforced intraradicular materials exhibited a similar rate of root fracture. Preoperative external inflammatory root resorption and patient age > 15 years were found to be the predisposing factors that significantly increased the incidence of root fracture. |
| Databáze: | OpenAIRE |
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