플라즈마 광중합기가 복합레진 중합에 미치는 영향
Effects of plasma arc curing lights on the surface hardness of the composite resins
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
기존에 사용하고 있는 할로겐 광중합기는 여러 가지 장점에도 불구하고 중합시간이 오래 걸린다는 문제 때문에 시술시간이 길어지는 단점이 있는데, 최근에 개발된 플라즈마 광중합기는 매우 짧은 시간에 중합시킬 수 있다고 제조회사는 주장하고 있다. 본 연구에서는 임상에서 흔히 상용하고 있는 복합 레진을 광중합 할 때, 할로겐 광중합으로 얻을 수 있는 플라즈마 광중합기의 적절한 중합시간을 알아보고자 한다. 2mm 두께의 레진 샘플을 만들어 광중합 하고 24 시간 후 상,하면의 미세경도를 측정하였다. point 4.에서는 플라즈마 광중합기로 6초간 중합했을 때 할로겐과 유사한 경도를 얻었지만, Z250.에서는 Flipo.만 9초간 중합시 할로겐과 유사한 광중합을 나타냈다. 이번 연구에서 사용한 플라즈마 광중합기는 적어도 6초 혹은 9초정도 광중합 했을 때 할로겐과 유사한 중합을 얻을 수 있다는 것을 알 수 있었다.
Abstract
In recent years, xenon plasma arc lamp was introduced for high-intensity curing of composite filling materials in direct resin restorations. In this study, two types of restorative materials, namely composites point 4. and Z250. were selected and curing was conducted using a conventional halogen light and two plama curing lights. Two different resin composites were cured using the different units(Flipo., Ultra-lite 180A, and TriLight.) and tested for microhardness. The purpose of this study was to test the hypothesis that exposure to a plasma curing lamp for 3, 6, 9 seconds is equivalent to 20 or 40 seconds of irradiation using a conventional halogen curing unit. 1. Flipo. and Ultra-lite 180A were able to polymerize point 4. at 6 seconds to a degree equal to that of the TriLight.(control) at 40 seconds. 2. Flipo. was able to polymerize Z250. at 9 seconds to a degree equal to that of the TriLight.(control) on the bottom surface at 20 seconds, whereas Ultra-lite 180A could not do. 3. Two plasma curing units were able to cure the test-composites with bottom/top ratios approximately 61% to 96% at 3 to 9 seconds. There were some differ-ences between the two composite brands, with Z250. displaying less difference between top and bottom hardness values. For point 4. and Z250., at least 6 or 9 seconds were necessary to produce microhardness equivalent to that of the TriLight. curing at 20 or 40 seconds.
참고문헌 (44)
- "Curing contraction of composite and glass-ionomer cements", 59, pp.297~300 (1988)
- "Effect of filler content of light-cured composites on bond strength to bovine dentine", 19, pp.301~303 (1991)
- "Post-irradiation polymerization of different anterior and posterior visible light-activated resin composites", 8, pp.299~304 (1992)
- "Effect of light wavelength on polymerization of light cured resins", 16(1), pp.60~73 (1997)
- "Optimal light curing of adhesive precoated brackets", 29, pp.583~5 (1995)
- "Clinical performance of orthodontic brackets and adhesive systems:a randomized clinical trial", 25, pp.283~7 (1998)
- "Plasma arc versus halogen light-curing of adhesive-precoated orthodontic brackets: A 12-month clinical study of bond failures.", 126(2), pp.194~199 (2004)
- "Plasma arc versus halogen light curing of orthodontic brackets A 12-month clinical study of bond failures", 125(3), pp.342~347 (2004)
- "Plasma arc curing of ceramic brackets an evaluation of shear strength and debonding characteristics", 124(3), pp.309~315 (2003)
- "Effects of fast halogen and plasma arc curing lights on the surface hardness of orthodontic adhesives for lingual retainers", 123(6), pp.641~8 (2003)
- "Rapid curing of bonding composite with a xenon plasma arc light", 119(6), pp.610~616 (2001)
- "An ex vivo investigation into the use of a plasma arc lamp when using a visible light-cured composite and a resin-modified glass poly(alkeonate)cement in orthodontic bonding", 28, pp.237~44 (2001)
- "Characterization of resin composites polymerized with plasma arc curing units", 16, pp.330~336 (2000)
- "Factors affecting cure of visible light activated composites", 35, pp.218~25 (1985)
- "The effect of thickness and shade on the polymerization of light-activated posterior composite resins", 17, pp.809~811 (1986)
- "A predictive model for the polymerization of photo-activated resin composites", pp.159~166 (1994)
- "Effect of light intensity on polymerization of light-cured composite resins", 13, pp.198~205 (1994)
- "Elution of TEGDMA and BisGMA from a resin and a resin composite cured with halogen or plasma light", 108, pp.341~345 (2000)
- "Comparison of plasma arc and conventional halogen curing units", 79(1802) (2000)
- "Composite depths of cure using a variety of curing sources", 79(1804) (2000)
- "Comparison between a plasma arc light source and conventional halogen curing units regarding flexural strength, modulus, and hardness of photoactivated resin composites", 4, pp.140~147 (2000)
- "Curing ability of a plasma lamp", 79(1531) (2000)
- "A comparative study of the properties of dental resin composites polymerized with plasma and halogen light", 19(6), pp.517~522 (2003)
- "Comparison study of visible light curing units and hardness of lightcured restorative materials", 52, pp.504~6 (1984)
- "Correlation between depth of cure and surface hardnessof a light-activated resin", 101, pp.62~64 (1993)
- "Correlation of parameters used to estimate monomer conversion in a light-cured composite", 67, pp.932~937 (1988)
- "Characteristics of visible-light-activated composite systems", pp.156~ (1984)
- "Irradiance effects on the mechanical properties of universal hybrid and flowable hybrid resin composites", 19(5), pp.406~413 (2003)
- "Effect of initiator concentration,exposure time and particle size of the filler upon the mechnical properties of a lightcuring radiopaque dental composite", 25, pp.747~751 (1998)
- "Dental composite depth of cure with halogen and blue light emitting diode technology", 186(8), pp.388~391 (1999)
- "Aspects of the use and abuse od aesthetic restoratives", pp.103~8 (1990)
- "A mathematical model for postirradiation hardening of photoactivated composite resins"
- "Polymerisation characteristics of resin composites polymerised differfent curing units", 32(6), pp.479~488 (2004)
- "Depth of cure efficacy of high-power curing devices vs traditional halogen lamps", 4, pp.41~47 (2002)
- "Microhardness of resin composites polymerized by plasma arc or conventional visible light curing", 27, pp.30~37 (2002)
- "The influence of plasma arc vs halogen standard or soft-start irradiation on polymerization shrinkage kinetics of polymer matrix composites Comparative efficiency of plasma and halogen light sources on composite micro-hardness in different curing conditions", pp.31 383 493~35 93 500 (1983)
- "Effects of high-speed curing devices on shear bond strength and microleakage of orthodontic brackets", 123(5), pp.555~561 (2003)
- "Polymerization depths of contemporary light-curing units using microhardness", 12(6), pp.340~349 (2000)
- "Factors affecting cure at depths eithin light-activated resin composites", 6(2), pp.91~95 (1993)
- "Output from visible light acivation units and depth of cure of light activated composites", 68, pp.1534~9 (1989)
- "Depth of cure of radiation activated materials-effect of mould material and cavity size", 21, pp.305~11 (1993)
- "Clinical guidelines for photocuring restorative resins", 126, pp.1280~1286 (1995)
- "The influence of plasma arc vs. halogen standard or soft-start irradiation on polymerization shrinkage kinetics of polymer matrix composites", 31(6), pp.383~393 (2003)
- "Comparative efficiency of plasma and halogen light sources on composite micro-hardness in different curing conditions", 19(6), pp.493~500 (2003)
