한국인의 하악 구치의 근관 형태에 관한 후향성 연구
A RETROSPECTIVE STUDY OF ENDODONTICALLY TREATED MANDIBULAR MOLARS IN A KOREAN POPULATION
정일영, 금기연, 류정아, 강태성,
소속 상세정보
정일영 ( Jung Il-Young ) - 연세대학교 치과대학 치과보존학교실
금기연 ( ) - 연세대학교 치과대학 치과보존학교실
류정아 ( ) - 연세대학교 치과대학 치과보존학교실
강태성 ( ) - 연세대학교 치과대학 치과보존학교실
KMID : 0362319970220020731
Abstract
A retrospective in vivo study of endodontically treated mandiblar molars was
conducted. The radilographs and clinical records of mandibular molars that had been
treated endodontically in the Dental hospital of Yonsei University from 1986 to July 1997
were reviewed and categorized. A total of 1751 cases were studied and following results
were obtained.
1. The number of root canals in mandibular first permanent molar in a Korean
population revealed three in 53.2%, four in 23.0%, two in 18.4%, C-shaped canal in 5.0%,
and one in 0.4%.
2. In mandibular second molar, three canals was observed in 53.2%, four in 22.2%, two
in 14.9%, C-shaped canal in 9.1%, and one in 0.6%.
3. IN the results of the percentage of 4 canals of mandibular first molars at various age,
before age 20, 37.7% was obtained whereas 19.3% after 30.
4. 7.94% of mandibular first molars examined were found to have three roots.
5. The mandibular second molar had C-shaped canals in 9.1%.
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