Cone-beam computed tomography study of the root and canal morphology of mandibular permanent anterior teeth in a Chongqing population

• Published in: Therapeutics and clinical risk management Vol. 12; no. Issue 1; pp. 19 - 25
• Main Authors: Zhengyan, Yang, Keke, Lu, Fei, Wang, Yueheng, Li, Zhi, Zhou
• Format: Journal Article
• Language: English
• Published: New Zealand Taylor & Francis Ltd 01.01.2016; Dove Medical Press
• Subjects: cone beam computed tomography mandibular anterior teeth root canal morphology radicular grooves; Dentistry; Dimensional analysis; Endodontics; Investigations; Medical imaging; Morphology; Original Research; Population; Software; Teeth; Tomography; United States > US; China; cone-beam computed tomography; root canal morphology; radicular grooves; mandibular anterior teeth
• ISSN: 1176-6336; 1178-203X; 1178-203X
• DOI: 10.2147/TCRM.S95657

To investigate the root and canal morphology of permanent mandibular anterior teeth in a Chongqing population using cone-beam computed tomography (CBCT). CBCT images of 1,725 patients in a Chongqing population were selected, and a total of 9,646 mandibular anterior teeth were analyzed. The number of root canals and the canal configurations were investigated. In total, 0.3% (11/3,257) of lateral incisors and 0.8% (26/3,014) of canines had double roots, and 3.8% (127/3,375) of central incisors, 10.6% (345/3,257) of lateral incisors, and 4.2% (127/3,014) of canines had multi-root canals. The difference in the incidence of multi-canals in lateral incisors between female and male was statistically significant. The frequency of multi-canals in the different age groups was 5.0% for central incisors for ages 21-30 years, 14.7% for lateral incisors for ages 41-50 years, and 8.1% for canines for ages 41-50 years. With the limitations of the current study, we found that a high percentage of mandibular anterior teeth had multiple canals in the studied Chinese Chongqing population. The current data may provide clinicians practicing in Chongqing with a more thorough understanding of root canal morphology.