Restorative Dentistry and Endodontics

  • 제32권4호
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  • Pages.335-342
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  • 2007
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  • 2234-7658(pISSN)
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  • 2234-7666(eISSN)
대한치과보존학회 (The Korean Academy of Conservative Dentistry)
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하악 제2대구치의 C형 근관계에 관한 연구

A STUDY ON THE C-SHAPED ROOT CANAL SYSTEM OF MANDIBULAR SECOND MOLAR

  • 이동균 (조선대학교 대학원 치의학과 치과보존학교실) ;
  • 박준모 (조선대학교 대학원 치의학과 치과보존학교실) ;
  • 황호길 (조선대학교 대학원 치의학과 치과보존학교실)
  • Lee, Dong-Gyun (Department of Conservative Dentistry, Division of Dentistry, Graduate School, Chosun University) ;
  • Park, Jun-Mo (Department of Conservative Dentistry, Division of Dentistry, Graduate School, Chosun University) ;
  • Hwang, Ho-Keel (Department of Conservative Dentistry, Division of Dentistry, Graduate School, Chosun University)
  • 발행 : 2007.03.31
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초록

C형 근관은 복잡한 근관계의 형태로 인해 임상가가 미리 인지하지 못한 경우 근관치료 시 많은 어려움에 직면하곤 한다. 본 연구에서는 하악 제2대구치의 근관치료 환자에서 C형 근관의 형태별 빈도를 알아보고 방사선 사진 상 C형 근관계의 형태학적 특징과의 관련성을 비교 평가하고자 본 연구를 시행하였다. 1998년부터 2005년까지 조선대학교 치과병원 보존과에 내원한 227례의 하악 제2대구치 근관치료 환자의 의무기록지를 조사한 후 임상에서 근관치료 시 기록된 치수강저의 형태와 해당환자의 방사선 사진을 기초자료로 다음과 같은 결론을 얻었다. 하악 제2대구치 C형 근관은 한국인에서 많은 빈도를 보였으며, 근관치료 시 환자의 방사선 사진을 잘 활용하여 치근단의 형태와 원심근관의 위치를 주의깊게 관찰하면 C형 근관을 미리 예측할 수 있을 것으로 사료된다.

C-shaped canals are known to present a complex canal anatomy with numerous fins connecting individual canals, thus requiring supplementary effort to accomplish a successful root canal treatment. This study examined the frequency of the C-shaped mandibular second molars and interrelation between the clinical records and radiographs to recognize them treated in the Department of Conservative Dentistry of the Chosun University Dental Hospital during a six-year period (1998-2004). This study reviewed the clinical records of 227 patients who underwent root canal treatment of the mandibular second molars. After opening the chamber, those cases with C-shaped orifices in the pulpal floor were selected, ana the C-shaped root canal types were classified according to Melton's criteria. Three experienced dentists evaluated the radiographs of the C-shaped mandibular second molar on a viewer using a magnifying glass in order to determine if the root apex was fused or separated, the distal root canal was either centered or mesial shifted in the distal root, and if there was bilateral symmetry in a panorama. In conclusion, there is a high frequency of C-shaped mandibular second molars in Koreans. Simultaneous interpretation of the root shape and distal root canal using the preoperative, working length and post-treatment radiographs is important for diagnosing a C-shaped mandibular second molar.

키워드

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피인용 문헌

  1. A retrospective study on incidence of C-shaped canals in mandibular second molars vol.34, pp.4, 2009, https://doi.org/10.5395/JKACD.2009.34.4.346
  2. An evaluation of canal curvature at the apical one third in type II mesial canals of mandibular molars vol.37, pp.2, 2012, https://doi.org/10.5395/rde.2012.37.2.104