Restorative Dentistry and Endodontics

  • 제29권6호
  • /
  • Pages.541-547
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  • 2004
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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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하악대구치 근심치근의 협설측 근관장의 비교

A COMPARISON OF THE LENGTH BETWEEN MESIO-BUCCAL AND MESIO-LINGUAL CANALS OF THE MANDIBULAR MOLAR

  • 박슬희 (조선대학교 치과대학 치과보존학교실) ;
  • 노봉환 (조선대학교 치과대학 치과보존학교실) ;
  • 황호길 (조선대학교 치과대학 치과보존학교실)
  • Park Seul-Hee (Department of Conservative Dentistry, College of dentistry, Chosun University) ;
  • Noh Bong-Hwan (Department of Conservative Dentistry, College of dentistry, Chosun University) ;
  • Hwang Ho-Keel (Department of Conservative Dentistry, College of dentistry, Chosun University)
  • 발행 : 2004.11.01
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초록

The aim of this study was to compare the initial apical file (IAF) length between the mesio-buccanl and mesio-lingual canals of the mandibular molar before and after early coronal flaring. Fifty mandibular molars with complete apical formation and patent foramens were selected. After establishing the initial working length of the buccal and lingual canal of the mesial root using the Root-ZX, radiographs were taken for the working length with a 0.5 mm short of #15 K-file tip just visible at the foramen under a surgical microscope (OPMI 1-FC, Carl Zeiss Co. Germany) at 25X. After early coronal flaring using the $K^3$ file, additional radiographs were taken using the same procedure. The root canal morphology and the difference in working length between the buccal and lingual canals were evaluated. These results show that the difference in the length between the mesio-buccal and mesio-lingual canals of the mandibular molar was $\leq$ 0.5 mm. If one canal has a correct working length for the mesial root of the mandibular molar, it can be used effectively for measuring the working length of another canal when the files are superimposed or loosening. In addition, the measured the working length after early coronal flaring is much more reasonable because the difference in the length between the mesio-buccal and mesio-lingual canals can be reduced.

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피인용 문헌

  1. Study of endodontic working length of Korean posterior teeth vol.35, pp.6, 2010, https://doi.org/10.5395/JKACD.2010.35.6.429