대한치과기공학회지 (Journal of Technologic Dentistry)
- 제10권1호
- /
- Pages.43-46
- /
- 1988
- /
- 1229-3954(pISSN)
- /
- 2288-5218(eISSN)
AN STUDY ON THE DIMENSIONAL CHANGE OF PLASTER TO TIME WITH IMPRESSION MATERIALS
- 최석순 (신구전문대학 치기공과)
- Choi, Seog-Sun (Dept. of Dental Laboratory Technology, Sin Gu Junior College)
- 발행 : 1988.07.01
초록
The purpose of this investigation was to determined the dimensional change of plaster to time with impression materials. This study was carried out through the literature & experiment, using 4sorts of the Impression Materials(Alginate, Impression Agar, Silicone Rubber, Polysulfide Rybber)and 5 treatments(1hr, 11/2 hrs, 2hur, 3hur, 6hur). The results of this experiment were as follows : 1. Main effect of Impression Meterials & tretments was statistically significant.(P<0.01). 2. The effect of 2-way interaction of Impression materials & Treatments was also statistically significant.(P<0.01) 3. Though this study was the difference of degree according to the materials. All Impression Materials were tended to be constained according to over the time.
키워드