Holographic Interferometry를 이용한 탄성 고무 인상재의 체적변화에 관한 연구
Dimensional stability of elastomeric impresion materials using holographic interferometry
하치양, 이성복, 우이형,
소속 상세정보
하치양 ( Ha Chee-Yang ) - 경희대학교 치과대학 치과보철학교실
이성복 ( Lee Sung-Bok ) - 경희대학교 치과대학 치과보철학교실
우이형 ( Woo Yi-Hyung ) - 경희대학교 치과대학 치과보철학교실
KMID : 0362419960340030574
Abstract
This study investigated the time-dependent dimensional changes of elastomeric impression materials using holographic interferometry. Six commercial impression materials, Permlastic(polysulfide), Xantopren VL(condensation silicone), low and medium viscosity of Exafine, Provil (addition silicone), and Impregum(polyether), were selected. Steel plate was used as custom tray, and each impression specimen was 20 mm in width, 15 mm in length and 3 mm in thickness. Each impression material was evaluated at 30 minutes, 1, 2, 4, 6, 8 and 12 hours after setting using real-time holography. @ES The results were as follow : @EN 1. Xantopren VL and Permlastic showed relatively severe and continuous dimensional changes after setting Low viscosity of Exafine, Provil, Impregum showed relatively slight dimensional changes with function of time and medium viscosity of Exafine showed almost no dimensional change from 2 hours after setting to 6 hours. 2. On initial dimensional changes within 1 hour, the amount of change in low viscosity of Exafine was the least and Xantopren VL was the largest. 3. On dimensional changes at 4 hours after setting, the amount of change in medium viscosity of Exafine was the least and the change of Xantopren VL was the largest. 4. In overall dimensional stability during 12 hours, medium viscosity of Exafine was the most stable and Xantopren VL and Permlastic were least stable.
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