Application of Cone-Beam Computed Tomography for Evaluating Root Fenestration in an Iranian Subpopulation

Abstract

Aim: To determine the prevalence of root fenestration (RF) in an Iranian subpopulation using CBCT. Methods: This cross-sectional study was carried out in Kermanshah, Iran on all patients requiring CBCT scan for various indications. RF was categorized into 6 types. Also, periapical status was classified in 3 levels. Data was analyzed using descriptive statistics, multiple logistic regression, and chi-square test (alpha=0.05). Results: In this study 230 CBCT images with a total of 3101 teeth were evaluated. RF was observed in 36.9 of the images and 3.9 of the teeth. RF was more common in maxilla and on the buccal side. Also it was more frequently observed in canines (25.8). The most common type of RF was type I i.e. exposure of the apical third of the root regardless of involvement of the anatomic apex. Moreover, the most frequent involvement of periapical tissues was level 1 i.e. widened periodontal space without radiolucent periapical lesion. Conclusion: The overall prevalence of RF was 3.9. RF was more common in maxilla and on the buccal aspect. The most common teeth involved with RF were canines followed by lateral incisors. RF type I was more frequently observed. Moreover, RF was more commonly associated to level 1 of periapical involvement.