Journal of Dental Rehabilitation and Applied Science (구강회복응용과학지)

Korean Academy of Stomatognathic Function and Occlusion (대한턱관절교합학회)
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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
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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.

목적: Cone beam형 전산화 단층영상(CBCT)을 이용하여 한국인의 하악 제2대구치에서 C형 근관계의 해부학적인 특징을 결정하기 위함이다. 연구 재료 및 방법: 824개의 영상을 평가하였다. 2013년 치과임플란트 진단 및 치료를 위해 CBCT를 찍은 환자를 대상으로 하였다. 711개의 하악 제2대구치가 조사되었다. 근관계의 형태는 변형된 Melton 분류를 이용하여 분류하였다. 결과: 711개의 하악 제2대구치에서 21.5%가 C형 근관계를 가졌다. 이러한 분포는 치아 위치에 따라 달라지지 않았다. 양쪽으로 존재하는 대구치에서 대부분의 C형 근관은 대칭적으로 나타났다. C형 근관에서 가장 흔한 형태는 orifice 부분에서 Melton's Type I (89%), 치근단부위에서는 Melton's Type III (83.8%) 이었다. C형 근관은 남성(13.9%)보다 여성(25%)에서 더 많이 나타났다. 결론: 한국인의 하악 제2대구치에서 C형 근관은 매우 높게 나타난다. 성공적인 C형 근관의 치료를 위해 근관계의 특성을 이해하는 것은 중요하다.

Keywords

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