Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
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A RETROSPECTIVE STUDY ON INCIDENCE OF C-SHAPED CANALS IN MANDIBULAR SECOND MOLARS

하악 제2대구치의 C형 근관 발현빈도에 관한 후향적 연구

  • 김희선 (서울대학교병원 운영 서울시립 보라매병원 치과)
  • Published : 2009.07.31
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Abstract

Mandibular second molars have many variations in canal configuration. Technical modifications in cleaning, shaping and obturation are required. The purpose of this study was to investigate the root canal anatomy of mandibular second molars. 86 teeth of 85 patients were accessed and evaluated with taking radiographs for working length determination. 27 teeth(31.4%) had C-shaped canals, 43 teeth(50%) had 3 canals, 11 teeth(12.7%) had 4 canals, 5 teeth(5.8%) had 2 canals. Incidence of C-shaped canal was 31.7% in male and 31.1% in female. 30.9% of left mandibular second molar and 31.8% of right mandibular second molar showed C-shaped canals.

하악 제2대구치는 근관형태의 다양한 변이를 가지고 있어 근관치료시 여러가지 어려움을 야기한다. 본 연구에서는 하악 제2대구치의 여러가지 근관형태를 비율별로 분석해보고자 2005년에서 2008년까지 보라매병원에서 하악 제2대구치 근관치료를 받은 86개의 치아에서 치수강 개방 후 육안으로 근관입구의 형태를 확인하고 근관장 측정용 파일 삽입 후 방사선 사진을 촬영하여 근관형태를 기록, 분석하였다. 그 결과 C형 근관은 31.4%(27개)의 발현빈도를 보였으며 3근관 50%(43개), 4근관 12.7%(11개), 2근관 5.8%(5개)로 나타났다. C형 근관의 성별에 따른 발현빈도는 남성에서 31.7%, 여성에서 31.1%였다. 좌측 하악 제2대구치는 30.9%, 우측 하악 제2대구치는 31.8%의 C형 근관 발현빈도를 보였다.

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References

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