나노 충전제 함량에 따른 복합레진의 표면 미세경도차이
Effects of nanofiller content on the microhardness of experimentalmicrohybrid resin composites
1
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
최근에 개발된 나노 충전제를 microhybrid 복합레진에 첨가할 때, 나노 충전제 함량이 중합에 미치는 영향을 조사하기 위해, 실험적으로 나노 충전제의 함량을 다르게 제작한 복합레진에서 광중합 후 미세경도를 측정, 분석하여 다음과 같은 결론을 얻었다.1. 나노 충전제의 함량이 2%, 3%인 군은 0%, 1%인 군에 비해 중합된 면의 미세경도가 유의하게 높았으나(p<0.01), 그 차이는 크지 않았다.2. 나노 충전제의 함량이 높을수록 레진 시편의 하면에서의 미세경도는 증가하였으며, 나노 충전제의 함량이 0%, 1%, 2%간에, 0%, 1%, 3%간에 유의한 차이가 있었고(p<0.01), 2%와 3%간에는 차이가 없었다(p>0.05).3. 레진 시편의 상면과 하면의 미세 경도 차이는 나노 충전제 함량이 높을수록 감소하였으며, 나노 충전제의 함량이 0%, 1%, 2%간에, 0%, 1%, 3%간에 유의한 차이가 있었고(p<0.01), 2%와 3%간에는 차이가 없었다(p>0.05).
Abstract
The objective of this study was to evaluate the effects of nanofiller content on the microhardness and polymerization of experimental microhybrid composites. The nanofiller contents in the experimental composites were varied (0%, 1%, 2%, 3%), while the total filler content remained constant as 76 %wt. We obtained the following results: 1.The microhardness of the top surface for the 2%, 3% nanofilled microhybrid composites were significantly higher than those for the 0%, 1% nanofilled composites (p<0.05), but the difference was not great. 2.The microhardness of the bottom surfaces significantly increased with an increase in the nanofiller level (p<0.05), except between the 2% and 3% nanofilled groups (p>0.05).
참고문헌 (17)
- "A nanotechnology composite", 24, pp.662~670 (2003)
- "Dental materials and their selection", pp.113~129 (2002)
- "An application of nanotechnology in advanced dental materials", 134, pp.1382~1390 (2003)
- "All-purpose composite", 37, pp.57~658 (2002)
- "Influence of filler parameters on the mechanical coherence of dental restorative resin composites", 17, pp.735~740 (1996)
- "Effect of filler content and size on properties of composites", 64, pp.1396~1401 (1985)
- "Properties of Microfilled Composite resins as influenced by filler content", 64, pp.155~160 (1985)
- "Applied dental materials", pp.178~181 (1998)
- "Effect of binary and ternary filler mixtures on the mechanical properties of composite resins", 19, pp.229~244 (2000)
- "Optimization of hybrid composite properties", 2, pp.44~48 (1990)
- "Effect of filler system on the mechanical properties of light-cured composite resins Mechanical properties of visible light-cured composite resins with binary filler system"
- "Influences of composition on brush wear of composite resins.Influences of particle size and content of filler", 9, pp.659~678 (1990)
- "The influence of admixing microfiller to small-particle composite resin on wear", pp.489~490 (1989)
- "Effects of curing tip distance on the light intensity and composite resin microhardness", 24, pp.517~521 (1993)
- "Restorative resins:hardness and strength vs quality of remaining double bonds", 90, pp.484~489 (1982)
- "Scattering of Light by Pigment Particles", 31, pp.521~527 (1941)
- "Light scattering and gloss of an experimental quartz-filled composite", 65, pp.892~894 (1986)