| 치근형태에 따른 회전점에 관한 연구 |
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이호용1, 엄영배2, 이개송3, 최광철4 |
1서울대학교 대학원 치의학과 보철학
2서울대학교 대학원 치의학과 보철학
3서울대학교 대학원 치의학과 보철학
4서울대학교 대학원 치의학과 보철학 |
| A Study on the Rotation Center of the Different Shape of Root |
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Ho-Yong Lee1, Young-Bae Um2, Kae-Song Lee3, Kwang-Chul Choi4 |
1Dept. of Prosthodontics, College of Dentistry, Seoul National University
2Dept. of Prosthodontics, College of Dentistry, Seoul National University
3Dept. of Prosthodontics, College of Dentistry, Seoul National University
4Dept. of Prosthodontics, College of Dentistry, Seoul National University |
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| Abstract |
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This study is to determine the exact position of tipping rotation center of root. The method of measurement is to record by means of dial gauge. The different shapes of root of lower second premolar are named as smooth type, tapered type, and curved type. The followings are the result ;
1. The tipping rotation center of the teeth varies with he shape of roots.
2. The rotation center of the root is placed apical one third portion upon roots in the smooth shape of roots, one half portion of roots in the taper shape of roots and below the apical one-third of root in curve shape. |
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