The morphology of maxillary first molars and root canals in Uyghur adults examined by cone-beam com-puted tomography
10.3969/j.issn.1001-3733.2015.06.015
- VernacularTitle:锥体束 CT 对维吾尔族成人上颌第一磨牙牙根及根管形态的研究
- Author:
Xueping LIANG
;
Yuliang SUN
;
Yonggang DAI
;
Zhaoquan LIN
- Publication Type:Journal Article
- Keywords:
Cone-beam computed(CBCT);
Maxillary first molar;
Second mesiobuccal canal
- From:
Journal of Practical Stomatology
2015;(6):806-810
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the morphological characteristics of maxillary first molars,mesiobuccal roots and the incidence of second mesiobuccal(MB2)roots in Uyghur adults.Methods:1 00 Uyghur adults with full dentition were included.The morphology of maxillary first molars and root canals were examined by cone beam computerized tomography(CBCT).The prevalence of MB2 and the difference between sexes were analysed.Results:Among 200 maxillary first molars,1 54(77%)teeth were with 3 roots and 3 ca-nals,42(21 %)with 3 roots and 4 canals,2(1 %)with 3 roots and 5 canals,1 (0.5%)was with 4 roots and 6 canal,1 (0.05%) with 4 roots and 7 canal.The percentage of type Ⅰ,Ⅱ,Ⅲ,Ⅳ and Ⅴ mesiobuccal roots was 77.0,1 3.5,9.0,0 and 0.5 respec-tively.The prevalence of MB2 was 22.32% in male and 21 .2% in female(P =0.901 ).Conclusion:The prevalence of MB2 in Uy-ghur adults is about 22% and the predominant morphology of maxillary first molarsmesiobuccal roots was type I.
