A study of root canal morphology in maxillary third molars using cone-beam computed tomography

Author: QUAN He ¹ ; WANG Dan ² ; YUAN Jie ¹
Author Information

1. School of Stomatology, Harbin Medical University
2. Yantai Stomatological Hospital
Publication Type:Journal Article
Keywords: Maxillary third molar; CBCT; Root canal morphology; Root of tooth; Root canal
From: Journal of Prevention and Treatment for Stomatological Diseases 2017;25(1):44-47
CountryChina
Language:Chinese
Abstract: Objective:This study investigated root canal morphology in maxillary third molars by CBCT to provide an anatomical guideline for clinical treatment.
Methods:CBCT images of 397 maxillary third molars were collected. The root canal morphology was analysed, including the number of roots and the type of canals.
Results : In 397 maxillary third molars, three roots were the most frequently type, accounting for 43.07% and the fused root teeth were the second, accounting for 40.30%. For the root canal type, three canals were the most common, accounting for 47.86%, followed by single canal, accounting for 28.21%. According to the Vertucci root canal classification, 89.6% of the root canals were typeⅠ, the rest were typeⅡ, typeⅢ, type Ⅴ, and other types of root canals which were difficult to deal with in clinical treatment.
Conclusion :The root canal morphology of the maxillary third molar is various and the root canal system was complicated.
Full text:上颌第三磨牙根管形态的CBCT研究.pdf