Restorative Dentistry & Endodontics

Sohee Oh

1 Article

C-shaped root canals of mandibular second molars in a Korean population: a CBCT analysis: Hee-Sun Kim, Daun Jung, Ho Lee, Yoon-Sic Han, Sohee Oh, Hye-Young Sim; Restor Dent Endod 2018;43(4):e42. Published online November 1, 2018; DOI: https://doi.org/10.5395/rde.2018.43.e42

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.

Citations

Citations to this article as recorded by

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