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C-shaped root canal system in mandibular 2nd molars in Korean people evaluated by cone beam computed tomography

Cone beam computed tomography를 이용하여 한국인 제2하악 대구치에서 C형 근관계에 대한 평가

  • Kim, Miyeon (Department of Conservative Dentistry, Veterans Health Service Medical Center) ;
  • Kim, Jeonghee (Department of Conservative Dentistry, Veterans Health Service Medical Center) ;
  • Kim, Sunho (Department of Conservative Dentistry, Veterans Health Service Medical Center) ;
  • Song, Byungchul (Department of Conservative Dentistry, Veterans Health Service Medical Center) ;
  • Nam, Wook (Department of Conservative Dentistry, Veterans Health Service Medical Center)
  • 김미연 (중앙보훈병원 치과보존과) ;
  • 김정희 (중앙보훈병원 치과보존과) ;
  • 김선호 (중앙보훈병원 치과보존과) ;
  • 송병철 (중앙보훈병원 치과보존과) ;
  • 남욱 (중앙보훈병원 치과보존과)
  • Received : 2015.10.27
  • Accepted : 2016.03.19
  • Published : 2016.03.31

Abstract

Purpose: To determine the anatomical characteristic of C-shaped canal systems in Korean mandibular 2nd molars by cone beam computed tomography (CBCT). Materials and Methods: The 824 CBCT images were evaluated. These patients were taken CBCT for the diagnosis and treatment of dental implantation on 2013. The 711 mandibular 2nd molars were examined. The configuration of root canal systems were classified according to modified Melton's classifications. Results: Of the 711 mandibular 2nd molars, 21.5% had C-shaped canal systems. This prevalence did not differ with tooth position. Most of the C-shaped canals with bilateral molars were symmetrical. Of the C-shaped canal, the most common configuration Type were Melton's Type I (89%) in the orifice level and Melton's III (83.8%) in the apical level. The prevalence of C-shaped canal was higher in female (25%) than male (13.9%) (P < 0.05). Conclusion: A high prevalence of C-shaped canals were observed in Korean mandibular 2nd molars. For successful C-shaped root canal treatment, the comprehension of root canal systems was important.

Keywords

C-shaped canal;cone beam computed tomography;Korean;mandibulat 2nd molar

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