ROOT CANAL MORPHOLOGY IN MAXILLARY 2ND PREMOLAR USING CONE BEAM COMPUTED TOMOGRAPHY (CBCT) IN PATIENTS BELONGS TO PESHAWAR KHYBER PAKHUNKHWA

Objectives: The objective of this study was to investigate the root canal morphology in maxillary second premolar in a sample of Peshawar population.Methods and materials: This cross sectional study was conducted on 200 CBCT images in Khyber College of Dentistry, Peshawar. The inclusion criteria were both genders, Pakistani nationals and age range from 20 to 50 years. CBCT images of maxillary second bicuspid which were unclear, distorted, have been endodotically treated, having post or other pathologies were excluded. Age and gender were recorded from data base available with CBCT. The assessment of root canal system of upper second premolar was done on basis of Vertucci classifi cation. Stratifi cation of canal morphology among age groups and gender was performed by running Chi-square/Fisher exact test.Results: The mean age of the participants was 33.84±8.53 years. The males were 118 (59%) and females were 82 (41%). More than half of the participants had single canal (n=107, 54%) and 91(46%) had two canals. Most common morphology of canals according to Vetucci’s classifi cation was types II having 77 (38%) and type IV having 67 (34%). In young ages (20-30 years) the frequency of single canal was 56 (62%) while in old ages (41-50 years) it was 21(38%). These differences were statistically significant (p=0.009). However, the confi guration among various age groups was not statistically signifi cant (p=0.208). Conclusion: Prevalence of two canals are very common in maxillary second premolar. The common root canal confi gurations are type II and IV in this tooth.