Dentoalveolar surgeryEvaluation of Risk Factors for External Root Resorption and Dental Caries of Second Molars Associated With Impacted Third Molars
Section snippets
Study Design
This cross-sectional study was conducted at the Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Van Yüzüncü Yıl University, Van, Turkey, between 2011 and 2019. The study protocol was approved by the university ethics committee (No. 2019/10-06). The study was conducted in accordance with the institutional and national ethical standards of the responsible committee on human experimentation and with the principles of the Declaration of Helsinki.
Study Sample
This study included patients
Results
Of 680 CBCT images retrieved from the digital database, 513 failed to meet the inclusion criteria; a total of 250 eligible images of M3s in the upper and lower jaws of 167 patients were included. The mean age of the patients with CBCT images available was 26.08 ± 4 years (range, 18 to 40 years).
The relation between ERR and age, gender, tooth location, root development in M3, M3 inclination, M3 impaction type, M3 follicular diameter, and presence of M2-M3 contact is presented in Table 1.
Discussion
In this study, we investigated the risk factors for ERR and DC of the upper and lower M2s in relation to the position of the M3s. According to the null hypothesis of the study, the risk factors for ERR and DC in M2s were considered patient age, gender, tooth location, development of M3 roots, inclination of M3, type of M3 impaction, size of M3 follicle, and M2-M3 contact, and there was no variation among these risk factors. Factors associated with a significantly increased frequency of ERR in
Acknowledgments
The authors thank Dr Sıddık Keskin for his assistance with the statistical analysis.
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Conflict of Interest Disclosures: None of the authors have any relevant financial relationship(s) with a commercial interest.