Morphological Changes of the Root Apex in Anterior Teeth with Periapical Periodontitis: an in-vivo Cone-beam Computed Tomography analysis
Description
In this cross‑sectional study, 32 untreated anterior teeth with periapical periodontitis were enrolled, and compared with the healthy contralateral teeth. Cone-beam computed tomography was used to measure diameters of the apical constrictions. A software (3D Slicer) was used to reconstruct the teeth and analysis the apical constriction types. The distances of apical constriction to apical foramen and anatomical apex were measured respectively. Comparisons were made between periapical periodontitis teeth and healthy teeth data (AC-AA, AC-AF) through paired t tests with a significance level of 5%. Differences in constriction forms were analyzed by Fisher exact test or Chi square test according to gender. Statistical Package for Social Sciences 25.0 (IBM Co, New York, NY) was used for statistical analysis. The significance level was set at p < 0.05.