The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)
- Volume 34 Issue 2
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- Pages.349-362
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- 1996
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
COMPARISON OF STONE SURFACE POROSITIES CAUSED BY HYDROGEN GAS FROM ADDITION SILICONE IMPRESSION MATERIALS
부가 중합형 실리콘 인상재에서 발생하는 수고 기체가 경석고 표면에 미치는 영향
- Yoo, So-Jeong (Dept. of prosthodontics, College of Dentistry, Yonsei University) ;
- Lee, Keun-Woo (Dept. of prosthodontics, College of Dentistry, Yonsei University) ;
- Kim, Kyeung-Nam (Dept. of prosthodontics, College of Dentistry, Yonsei University)
- Published : 1996.11.01
Abstract
To determine the factors to affect on stone surface porosities produced from hydrogen gas of additional silicone, both putty and syringe type of 7 commercially different additional silicone impression materials(Blend-A-Scon, Correct VPS, Exaflex, Express, Extrude, Provil, Reprosil) were chosen and NewFujirock(GC) was poured into the impressions of detail-reproducing test block at 1, 15, 30, 45, 60 minutes after the impression materials had set and 4 specimens were made for each pouring time, each type of impression material, and each consisency and So, 280 specimens were made in total. The number of surface porosities of same area(