Root Morphology Of Mandibular Anterior Teeth In Mecca City Population

Background: Root canal morphology is of utmost importance to the success of endodontic treatment Objectives: The present study aim is to determine the variation in root canal morphology of the loweranterior permanent teeth using cone-beam computed tomography (CBCT) in a Saudi population especially Mecca city population. Material and Methods: Cross-sectional study usingCBCT images of 388 patients included according to specific criteria to evaluate the number of canals and their configuration according to Vertucci's classification. Results: The prevalence of the second canal of mandibular canine was11% (11.3 in male and 10.7 in female), for mandibular lateral incisor was 22.3% (28.5 for male and 16.7 for female) and mandibular central incisor represented 21% (22% for male 20.1% for female), these differences were not significant for canine (p=0.454) and central incisor (p=0.277) but significant for lateral incisor (p=0.028). Regarding position, there were no significant differences between right and left side (p=0.517, p=0.627 and p=0.507 for canine, lateral and central incisors respectively).According to Virtucci's classes;type I was the most prevalent followed by type III, II and V for lateral and central incisors and type III, V and II for canine.There were statistically significant differences between male and female for lateral and central incisors morphology (p=0.003 and p=0.013) while the difference was non significant for canine (p=0303).There were no significant differences between right and left side ( p=0.476, p=0.707 and p=0.362 for canine, lateral and central respectively). Conclusion: Type I Vertucci'sconfiguration was the most common type in all lower anterior teeth. The presenceof second canal is more prevalent in mandibular lateral and central incisors and the morphology of their root canals is significantly different between males and females.