치위생과학회지 (Journal of dental hygiene science)

  • 제10권6호
  • /
  • Pages.459-464
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  • 2010
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  • 1598-4478(pISSN)
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  • 2233-7679(eISSN)
한국치위생과학회 (The Korean Society of Dental Hygiene Science)
권호 표지

실리콘 인상재의 보관온도에 따른 특성변화

The Property Change of Silicone Impression Materials with Change of Storage Temperature

  • 오상환 (건양대학교 치위생학과) ;
  • 문승균 (연세대학교 치과대학 BK21, 치과생체재료공학교실 및 연구소) ;
  • 김경남 (연세대학교 치과대학 BK21, 치과생체재료공학교실 및 연구소)
  • Oh, Sang-Hwan (Dept. of Dental Hygiene, College of Medical Science, Konyang University) ;
  • Moon, Seung-Kyun (Brain Korea 21 Project, Department and Research Institute of Dental Biomaterials and Bioengineering, College of Dentistry, Yonsei University) ;
  • Kim, Kyoung-Nam (Brain Korea 21 Project, Department and Research Institute of Dental Biomaterials and Bioengineering, College of Dentistry, Yonsei University)
  • 투고 : 2010.09.20
  • 심사 : 2010.12.21
  • 발행 : 2010.12.31
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초록

본 연구는 실리콘 고무인상재의 보관온도에 따른 작업 시간과 압축 시 변형율, 탄성회복율, 점조도에 관한 물리적 특성에 대해서 평가하였으며, 다음과 같은 결과를 얻었다. 1. 작업시간은 저온의 온도유지장치에서 보관한 인상재가 실온이나 고온에서 보관한 인 상재보다 유의하게 크게 나타났고(P<0.05), 실온과 고온에서 보관한 인상재는 유의차 가 없었다. 2. 압축변형율은 저온 온도유지장치에서 보관한 인상재가 실온이나 고온에서 보관한 인 상재보다 유의하게 컸으며(P<0.05), 실온과 고온에서 보관한 인상재는 유의차가 없 었다. 3. 탄성회복율은 인상재를 보관한 각 저장온도에 따라 유의한 차이가 있는 것으로 나타 났으며(P<0.05), 온도가 높아짐에 따라 증가하였다. 4. 점조도는 인상재를 보관한 각 저장온도에 따라 유의한 차이가 있는 것으로 나타났으 며(P<0.05), 온도가 높아짐에 따라 감소하였다.

The purpose of this study was to evaluate the physical properties of hydrophilic polyvinyl siloxane impression materials as change of material's storage temperatures. Working time, strain-in-compression, elastic recovery and consistency were tested according to ISO Standard NO. 1563. The results are as followed. 1. Working time decreased in cold storage. 2. Strain-in-compression was different in storage temperatures. Material's strain-in compression in cold temperatures were higher than in room temperature and in incubator. 3. A coefficient of elastic recovery varied by storage temperatures. The rate in cold temperature was the lowest and in incubator was the highest. 4. Consistency of impression substance different in storage temperatures. The extent in cold temperature is the highest and in incubator was the lowest. Statistical analysis(SPSS 14.0k, p>0.05) showed that storage temperature affect to material's physical properties. We recognized that the physical properties of polyvinyl siloxane impression materials were changed according to storage temperature.

키워드

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