Restorative Dentistry and Endodontics
- Volume 19 Issue 2
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- Pages.499-512
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- 1994
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
AN ELECTROCHEMICAL STUDY ON MICROLEAKAGE OF RETROGRADE FILLING USING DIFFERENT RETROGRANE FILLING MATERIALS, ROOT RESECTION ANGLE AND CAVITY PREPARATION INSTRUMENTS
역충전재 및 치근단 절제 각도와 와동 형성 기구에 따른 역충전물의 변연 누출에 관한 전기화학적 연구
- Kim, Jin-Woo (Department of Conservative Dentistry, College of Dentistry, Seoul National University) ;
- Lim, Sung-Sam (Department of Conservative Dentistry, College of Dentistry, Seoul National University)
- Published : 1994.09.10
Abstract
The purpose of this study was to evaluate the microleakage electrochemically using different retrograde filling materials, different root resection angle, and different cavity preparation instruments. 104 extracted single-rooted teeth were selected for this study. 100 teeth were used as experimental groups and four was used as controls. Anatomical crowns were resected, root canals were prepared, and the apical 2 mm of roots were removed. The experimental roots were randomly divided into five equal groups. Experimental groups : Group 1. no bevel, cavity preparation with ultrasonic instruments, amalgam filling Group 2. no bevel, cavity preparation with ultrasonic instruments, SuperEBA cement filling Group 3. no bevel, cavity preparation with ultrasonic instruments, desiccated ZOE filling Group 4.