CBCT study of root and canal morphology of 1,684 maxillary second molars
DAI De-hua
DAI Jing
CHEN Hu-jie
WANG Xuan
CHEN Jun-xia
Abstract：AIM:To investigate the root and canal morphology of maxillary second molars in Han population in Jingzhou by CBCT images.METHODS:The CBCT data of 842 subjects with 1684 bilateral maxillary second molars were included.Gender, age, tooth position, number of roots and root canals were recorded.The root canal configuration was categorized according to the Vertucci''s criteria.RESULTS:The maxillary second molars showed a higher prevalence of 3 roots(77.4%), 11.2% of them had 1 root, whereas 9.7% and 1.7% of them had 2 and 4 roots respectively.The most common canal morphology in the mesiobuccal root of 3-rooted maxillary second molars was 1-1, however, 34.4% of mesiobuccal roots had second mesiobuccal canal.The incidence of Type Ⅱ root in men and women was 26.8% and 16.6% (P<0.05), Type V was 8.3% and 13.9% (P<0.05), respectively.CONCLUSION:The root and canal configurations of maxillary second molar are variable.There are some differences in the number of roots and canals between male and female subjects.
Keywords：maxillary second molarroot canal morphologyCBCTsecond mesiobuccal canal
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 396-400 )