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논문 기본 정보

자료유형
학술저널
저자정보
박민수 (조선대학교) 황호길 (조선대학교) 조형훈 (조선대학교)
저널정보
대한치과의사협회 대한치과의사협회지 대한치과의사협회지 Vol.55 No.1 (Wn.572)
발행연도
2017.1
수록면
63 - 70 (8page)

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초록· 키워드

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Materials and methods: Sixty extracted premolars were assigned to three groups according to the root canal system (Weine’s classification; type I, II and III) of 20 teeth each using radiographic examination. The root tip was cut horizontally 1 mm from the anatomical apex and the apical cross-section was visualized using microscope at x50 magnification and photographed. Minimum and maximum apical root canal diameter of each tooth was measured and classified into three types by canal morphology (round, oval and flattened shape). Statistical analysis was performed to compare the apical root canal diameter and morphology according to the root canal system.
Results: In apical root canal morphology at cross-sectional view, the most common shape was round in type I, flat in type II, and oval in type III. In apical root canal diameters at cross-sectional view, there was a significant difference between the minimum and maximum diameter in all types (p<0.05). The maximum diameter was 0.331 mm in type I, 0.519 mm in type II, and 0.310 mm in type III. There was a significant difference among type I, III and type II (p<0.05).
Conclusion: The morphology and diameter of apical root canal was different according to the root canal system. Therefore, clinicians should consider the apical file size in view of the apical root canal shape according to the root canal system.

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ABSTRACT
Ⅰ. 서론
Ⅱ. 실험재료 및 방법
Ⅲ. 결과
Ⅳ. 고찰
Ⅴ. 결론
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UCI(KEPA) : I410-ECN-0101-2017-515-001992020