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- Title
Incidence of C-Shaped Root Canal Systems in Mandibular Second Permanent Molar and the Effect of One-Visit Root Canal Treatment.
- Authors
TAN Xiaobing; XU Jingshu; XIAO Yan
- Abstract
Objective To investigate the incidence of C-shaped root canal systems in mandibular second permanent molar of patients in the First People s Hospital of Yunnan Province, and compare the success rate between one- and two-visit root canal treatment. Methods Two hundred and sixty mandibular second molars were recruited from the patients in the department of endodontics of our hospital, and teeth with C-shaped root canal were categorized by using radiographic classification criteria and the modified Melton' s method. Teeth with C-shaped root canal systems were then randomly divided into two groups to receive one- or two-visit root canal treatment, and success rates of 6-month post-operation were compared between two groups. Results Eighty out of 260 mandibular second molars exhibited C-shaped canals (30.77%). Radiographic examination showed that 25 teeth belonged to type I (31.25%), 32 teeth type I (40.00%) and 23 teeth type III (28.75%) in two groups. As for modified Melton's method, the incidence rates were 21.25%, 48.75%, 16.25% and 13.75% for C1,C2,C3a and C3b, respectively, while C4 was not found. The success rates were 78.94% (30/38) and 81.08% (30/37) for A group and B group, respectively, with no statistically significant difference between two groups (78.94 vs 81.08, P > 0.05). Conclusion Results indicate a frequent incidence of C-shaped root canal system of mandibular permanent second molars in our hospital. One-visit root canal treatment is an effective way for treating C-shaped canals in mandibular permanent second molar.
- Subjects
ROOT canal treatment; MOLARS; TOOTH roots; DENTAL therapeutics; ENDODONTICS
- Publication
Tianjin Medical Journal, 2014, Vol 42, Issue 11, p1118
- ISSN
0253-9896
- Publication type
Article
- DOI
10.3969/j.issn.0253-9896.2014.11.019