Proceedings of the KACD Conference (대한치과보존학회:학술대회논문집)
- 2008.05a
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- Pages.235-245
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- 2008
SLUMPING RESISTANCE AND VISCOELASTICITY OF RESIN COMPOSITE PASTES
치과용 복합레진의 중합 전 slumping resistance와 점탄성
- Suh, Hee-Yeon (Department of Conservative Dentistry, School of Dentistry, Seoul National University) ;
- Lee, In-Bog (Department of Conservative Dentistry, School of Dentistry, Seoul National University)
- Published : 2008.05.30
Abstract
The aim of this study was to develop a method for measuring the slumping resistance of resin composites and to relate it to the rheological characteristics. Five commercial hybrid composites (Z100. Z250. DenFil, Tetric Ceram. ClearFil) and a nanofill composite (Z350) were used to make disc-shaped specimens of 2 mm thickness. An aluminum mold with square shaped cutting surface was pressed onto the composite discs to make standardized imprints. The imprints were light-cured either immediately (non-slumped) or after waiting for 3 minutes at
본 연구의 목적은 복합레진의 slumping resistance를 측정할 수 있는 방법을 개발하고, 그 유용성을 평가하기 위해 rheometer를 이용해 측정된 복합레진의 여러 유변학적 성질과 slumping resistance의 상호 관련성을 밝히고자 하였다. 상용되는 hybrid composites (Z100, Z250, DenFil, Tetric Ceram, ClearFil)와 nanofil composite (Z350)를 2 mm 두께의 디스크 모양의 시편으로 만들었다. 사각형의 단면을 가진 알루미늄 형판으로 레진 디스크를 눌러 표준화된 자국을 남겼다. 이것을 즉시 광중합하거나 (no-slump)
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