Prevalence And Anatomical Distribution of Lateral Canals in Maxillary Premolars Assessed Using Cone-Beam Computed Tomography: An Original Study

Aim: To evaluate the presence, frequency, and anatomical location of lateral canals in extracted maxillary premolars using cone-beam computed tomography (CBCT). Materials and Methods: Three hundred extracted human maxillary premolars were subjected to CBCT imaging under standardized parameters. Axial, sagittal, and coronal sections were evaluated for root canal configuration according to Vertucci’s classification and for the presence of lateral canals. Data were recorded and analyzed using descriptive statistics. Results: The majority of maxillary premolars exhibited Vertucci Type I canal configuration. Lateral canals were identified in 1.0% of specimens (3 out of 300 teeth). When present, lateral canals were predominantly located in the middle and apical thirds of the root. Complex canal configurations including Vertucci Types II, IV, V, VI, and VIII were also observed. Conclusion: Lateral canals in maxillary premolars are relatively rare but clinically significant anatomical variations. CBCT is a reliable non-destructive imaging modality for detecting lateral canals and complex root canal morphology, thereby aiding in improved endodontic diagnosis and treatment planning