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Prevention and Treatment Practice | Publishing Language: Chinese | Open Access

Study on the application of cone-beam CT in root canal morphology of first deciduous molars

Xiangyu MA1, Jianhua LI1, Hongda PENG2, Keyuan MA1, Jing ZOU3, Yan WANG3( )
Department of Stomatology, Mianyang Hospital of T.C.M, Mianyang 621000, China
Department of Pediatric Dentistry, NanChong Stomatological Hospital, Nanchong 637100, China
State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Stomatology Hospital of Sichuan University, Chengdu 610041, China
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Abstract

Objective

To analyze the number, distribution of root canals in children's first deciduous teeth through a retrospective study of cone-beam computed tomography (CBCT).

Methods

A 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.

Results

All 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.

Conclusion

The first deciduous molars usually have 2 to 3 roots. Root canals are mainly type Ⅰ and Ⅳ. The distribution of root canals is symmetrical.

Keywords

Cone-beam computed tomographyDeciduous teethTooth rootRoot canalNumber of root canals
CLC number: R788 Document code: A Article ID: 2096-1456(2019)06-0387-04

References

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Journal of Prevention and Treatment for Stomatological Diseases
Volume 27 Issue 6,
June 2019
Pages 387-390
DOI: 10.12016/j.issn.2096-1456.2019.06.009

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Cite this article:
MA X, LI J, PENG H, et al. Study on the application of cone-beam CT in root canal morphology of first deciduous molars. Journal of Prevention and Treatment for Stomatological Diseases, 2019, 27(6): 387-390. https://doi.org/10.12016/j.issn.2096-1456.2019.06.009

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Received: 29 August 2018
Revised: 26 October 2018
Published: 20 June 2019
© 2019 by Editorial Department of Journal of Prevention and Treatment for Stomatological Diseases

This article is licensed under a Creative Commons Attribution 4.0 International License.