Study on the application of cone-beam CT in root canal morphology of first deciduous molars
10.12016/j.issn.2096-1456.2019.06.009
- Author:
MA Xiangyu
1
;
LI Jianhua
1
;
PENG Hongda
2
;
MA Keyuan
1
;
ZOU Jing
3
,
4
;
WANG Yan
3
,
4
Author Information
1. Department of Stomatology, Mianyang Hospital of T.C.M
2. Department of Pediatric Dentistry, NanChong Stomatological Hospital
3. State Key Laboratory of Oral Diseases &
4. National Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, West China Stomatology Hospital of Sichuan University
- Publication Type:Journal Article
- Keywords:
Cone-beam computed tomography;
Deciduous teeth;
Tooth root;
Root canal;
Number of root canals
- From:
Journal of Prevention and Treatment for Stomatological Diseases
2019;27(6):387-390
- CountryChina
- Language:Chinese
-
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.
- Full text:锥形束CT应用于第一乳磨牙根管形态的研究.pdf
