@article{MA2019, 
author = {Xiangyu MA and Jianhua LI and Hongda PENG and Keyuan MA and Jing ZOU and Yan WANG},
title = {Study on the application of cone-beam CT in root canal morphology of first deciduous molars},
year = {2019},
journal = {Journal of Prevention and Treatment for Stomatological Diseases},
volume = {27},
number = {6},
pages = {387-390},
keywords = {Cone-beam computed tomography, Deciduous teeth, Tooth root, Root canal, Number of root canals},
url = {https://www.sciopen.com/article/10.12016/j.issn.2096-1456.2019.06.009},
doi = {10.12016/j.issn.2096-1456.2019.06.009},
abstract = {ObjectiveTo analyze the number, distribution of root canals in children's first deciduous teeth through a retrospective study of cone-beam computed tomography (CBCT).MethodsA total of 185 first deciduous molars were selected from 91 children aged 4 to 8 years old in the Stomatology Department of Mianyang Hospital of Traditional Chinese Medicine. The number, distribution of root canals were analyzed.ResultsAll 46 maxillary first deciduous molars had three roots; 139 mandibular first deciduous molars had two roots (77.70%) and three roots (22.30%). The root canals of all maxillary first deciduous molars are type Ⅰ, while the main root canal type of mandibular first deciduous molars is type Ⅳ. Of 51 children with bilateral mandibular first deciduous molars, 48 (94.12%) had symmetrical root and canal distributions.ConclusionThe first deciduous molars usually have 2 to 3 roots. Root canals are mainly type Ⅰ and Ⅳ. The distribution of root canals is symmetrical.}
}