Packable resin의 미세 경도와 경화수축
A study of microhardness and polymerization shrinkage of packable resins
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초록
Packable resin은 아말감을 대신할 수 있을 것이라는 기대와 함께 상용화되었다. 이런 packable resin은 종래의 hybrid resin과는 달리 필러함량이 높고 분포가 더 조밀하다. 본 연구에서는 높은 필러함량이 packable resin의 미세경도와 경화수축에 미치는 영향을 조사하고 그 결과들을 hybrid resin에서 얻은 것들과 비교하였다. 그 결과 packable resin은 hybrid resin에 비하여 보다 높은 미세경도를 보였는데 본 실험에 사용된 레진들은 종류에 관계없이 그들의 미세경도가 필러함량(vol%)과 상관관계가 있었다. 또한 packable resin은 hybrid resin에 비하여 훨씬 적게 경화수축 하였는데 관찰된 경화수축과 필러함량 사이에는 역상관관계가 있었다.
Abstract
Packable resins have been introduced in the market with high expectations as an alternative to amalgam. They are characterized by a high-filler load and a filler distribution that gives them a different consistency compared with the hybrid resins. The effect of high filler load on the microhardness and polymerization shrinkage of packable resins was tested. Hybrid resins were also tested to compared with the packable resins. As a result, packable resins showed a much greater microhardness value than hybrid resins. All the tested resins have a correlationship with the microhardness and filler content (vol%). The packable resins showed much less polymerization shrinkage than hybrid resins. The filler content and polymerization shrinkage were inversely correlated in the tested resins.
참고문헌 (17)
- "Polymerization contraction and conversion of light curing Bis-GMA-based methacrylate resins", 14, pp.871~875 (1993)
- "Resin composites in dentistry:The monomer system", 105, pp.97~116 (1997)
- "The polymerization contraction of visible-light activated composite resins", 16, pp.177~181 (1988)
- "properties of microfilled composite resins as influenced by filler content", pp.155~169 (1985)
- "Mechanical properties and filler fraction of dental composites", 5, pp.346~349 (1989)
- "Correlation between strength of bonding to enamel and mechanical properties of dental composites", pp.775~783 (1982)
- "The relationship between composition and properties of posterior resin composites", 69, pp.852~856 (1990)
- "A modified dilatometer for continiuous recording of volumetric polymerization shrinkage of composite restorative materials", 9, pp.36~42 (1981)
- "Microhardness of resin composite polymerized by plasma arc or conventional visible light curing", 27, pp.30~37 (2002)
- "Polymerization shrinkage of densely-filled resin composites", 26, pp.498~504 (2001)
- "Clinical significance of polymerization shrinkage of composite resins", 48, pp.59~67 (1982)
- "Polymerization shrinkage and polymerization shrinkage stress in polymer-based restoratives", 25, pp.435~440 (1997)
- "Microleakage:The effect of storage and cycling duration", 57, pp.574~576 (1987)
- "Contraction gap under composite resin restorations:Effects of hygroscopic expansion and thermal stress", 13, pp.24~31 (1988)
- "Relationship between composite matrix molecular structure and properties", 19, pp.2007~2014 (1998)
- "Light-polymerized compomers: coefficient of thermal expansion and microhardness", 88, pp.396~401 (2002)
- "The future of dental materials", 25, pp.411~417 (1998)