PROFILE을 이용한 만곡 근관 형성시 근관의 형태에 관한 연구
A STUDY ON THE SHAPE OF A CANAL PREPARED WITH PROFILES IN A CURVED CANAL
박한수, 이민구, 김종진, 이종엽,
소속 상세정보
박한수 ( ) - 성균관대학교 의과대학 강북삼성병원
이민구 ( ) - 성균관대학교 의과대학 강북삼성병원
김종진 ( ) - 성균관대학교 의과대학 강북삼성병원
이종엽 ( ) - 성균관대학교 의과대학 강북삼성병원
KMID : 0362319990240040633
Abstract
The purpose of our study is to evaluate the ability of nickel-titanium(NiTi) files in maintaining the original curvature of a curved root canal during canal preparation. Curved canals on translucent resin blocks were prepared with Profiles and stainless steel files and they were placed at the platform which can repro-duce the same position. The unprepared and prepared canal forms were accurately compared by double exposure technique of photography.
The results were as follows:
1. NiTi files made a canal comparatively taper, but stainless steel files didn t make a banal taper, widest at midportion and comparatively wide at a apical portion.
2. Canals preparations with no. 25 Profile.06 up to the working length were most excellent in taperness and in maintaining the oritinal curvature. Canals prepared with no. 30 Profile.06 up to the. working length made a little outer transportation at a apical portion, but not severe.
3. Canal preparations with Profile GT were excellent in taperness and in maintaining the original curvature, but made more enlargement toward the inner side at the starting portion of the curvature.
4. Canal preparations with stainless steel files were not tapered and provided the largest transportation.
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