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C-shaped root canals of mandibular second molars in a Korean population: a CBCT analysis.

作者信息

Kim Hee-Sun, Jung Daun, Lee Ho, Han Yoon-Sic, Oh Sohee, Sim Hye-Young

机构信息

Department of Dentistry, Seoul Metropolitan Government-Seoul National University Boramae Medical Center (SMG-SNU BMC), Seoul, Korea.

Department of Biostatics, Seoul Metropolitan Government-Seoul National University Boramae Medical Center (SMG-SNU BMC), Seoul, Korea.

出版信息

Restor Dent Endod. 2018 Nov 1;43(4):e42. doi: 10.5395/rde.2018.43.e42. eCollection 2018 Nov.

Abstract

OBJECTIVES

The purpose of this study was to investigate the C-shaped root canal anatomy of mandibular second molars in a Korean population.

MATERIALS AND METHODS

A total of 542 teeth were evaluated using cone-beam computed tomography (CBCT). The canal shapes were classified according to a modified version of Melton's method at the level where the pulp chamber floor became discernible.

RESULTS

Of the 542 mandibular second molars, 215 (39.8%) had C-shaped canals, 330 (53%) had 3 canals, 17 (3.3%) had 2 canals, 12 (2.2%) had 4 canals, and 8 (1.7%) had 1 canal. The prevalence of C-shaped canals was 47.8% in females and 28.4% in males. Seventy-seven percent of the C-shaped canals showed a bilateral appearance. The prevalence of C-shaped canals showed no difference according to age or tooth position. Most teeth with a C-shaped canal system presented Melton's type II (45.6%) and type III (32.1%) configurations.

CONCLUSIONS

There was a high prevalence of C-shaped canals in the mandibular second molars of the Korean population studied. CBCT is expected to be useful for endodontic diagnosis and treatment planning of mandibular second molars.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d5d8/6237723/11d60ff3c804/rde-43-e42-g001.jpg

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