Clinical study of root canal numbers in maxillary second primary molars
10.12016/j.issn.2096-1456.2017.05.008
- VernacularTitle:上颌第二乳磨牙根管数目的临床研究
- Author:
JIA Rui-zhi
1
;
YANG Dong-mei
1
;
SHANG Jia-jian
1
Author Information
1. Department of Pediatric Dentistry, Capital Medical University Beijing Stomatological Hospital
- Publication Type:Journal Article
- Keywords:
Maxillary second primary molars;
Root canals number;
Second mesiobuccal canal;
Root canal therapy;
Root canal variation
- From:
Journal of Prevention and Treatment for Stomatological Diseases
2017;25(5):316-319
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the root canal numbers of maxillary second primary molars.
Methods :216 max illary second primary molars from 204 children aged 3-8 years old were selected. All the teeth need to do the root canal therapy. After opening the pulp chamber, the root canal were examined and determined with small size K file and 17％ethylene diaminetetraacetic acid (EDTA). Hand instruments were used for root canal preparation and then zinc-oxide iodoform paste was used for filling.
Results :216 maxillary second p rimary molars, 122 teeth had three root canals(56.5%), and 94 teeth had four root canals (43.5%). The incidence of second mesiobuccal canal (MB2) was 41.2%. There was no correlation between the incidence of the MB2 canal and gender and tooth position.
Conclusion: The root canals of maxillary second primary molars had more variations, and there was a high incidence of the second mesiobuccal canal.
- Full text:上颌第二乳磨牙根管数目的临床研究.pdf
