Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)
- Volume 31 Issue 3
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- Pages.421-430
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- 2004
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- 1226-8496(pISSN)
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- 2288-3819(eISSN)
ELUTION OF RESIDUAL MONOMER ACCORDING TO VARIOUS LIGHT SOURCES AND CURING TIME ON THE POLYMERIZATION OF PHOTOACTIVATED PIT AND FISSURE SEALANTS
광중합 광원의 종류와 조사시간에 따른 치면열구전색제의 미반응 모노머 용출
- Oh, You-Hyang (Department of Pediatric Dentistry, College of Dentistry, Chosun University) ;
- Park, Yoon-Kyung (Department of Research Center for Proteineous Materials, College of Dentistry, Chosun University) ;
- Lee, Nan-Young (Department of Pediatric Dentistry, College of Dentistry, Chosun University) ;
- Lee, Chang-Seop (Department of Pediatric Dentistry, College of Dentistry, Chosun University) ;
- Lee, Sang-Ho (Department of Pediatric Dentistry, College of Dentistry, Chosun University)
- 오유향 (조선대학교 치과대학 소아치과학교실) ;
- 박윤경 (조선대학교 치과대학 단백질소재연구센터) ;
- 이난영 (조선대학교 치과대학 소아치과학교실) ;
- 이창섭 (조선대학교 치과대학 소아치과학교실) ;
- 이상호 (조선대학교 치과대학 소아치과학교실)
- Published : 2004.08.31
Abstract
The purpose of this study was to measure and compare the amount of unreacted TEGDMA from pit and fissure sealants cured with three different light sources; conventional halogen light curing unit, plasma arc light curing unit and argon laser. The specimens were eluted in distilled water for different time intervals. The time-related release of TEGDMA were analyzed by reverse-phase high performance liquid chromatography(HPLC). The result of present study can be summarized as follows: 1. The time-related release of TEGDMA decreased with increasing curing time in conventional halogen light, however, that not statistically significant difference(p>0.05). 2. The elution from the specimens cured for 6 and 9 seconds with plasma arc light was similar results corresponding with the time-related TEGBMA release, and was significantly lower than that cured for 3 seconds(p<0.05). 3. The elution of TEGDMA from the specimens cured with argon laser was significantly higher than that cured with halogen and plasma arc light(p<0.05). 4. The elution of TEGDMA from under recommended time of three different light sources were showed to be no statistically significant difference(p>0.05). 5. In time-related release of TEGDMA from recommended time of each light sources, the results correspond to 40 seconds of halogen light and 6 seconds of plasma arc light were similar(p>0.05). 6. The elution of TEGDMA, from over recommended time of three different light sources were showed to be no statistically significant difference(p>0.05). In this study, I suggest that curing time of plasma arc light is 6 and/or 9 seconds in the field of clinical pediatric dentistry claiming its effectiveness in optimal polymerization and reduced chair time.
본 연구에서는 기존의 할로겐 광과 보다 강한 강도와 짧은 조사시간을 갖는 아르곤 레이저와 플라즈마 광의 광중합도를 평가하기 위해 많은 양의 TEGDMA를 용출하는 치면열구전색제를 실험재료로 이용하여 각각의 중합시간과 용출시간에 따른 미반응 TEGDMA의 양을 측정, 비교 분석하여 중합도를 평가하였다. 광원에 따른 중합시간 당 각각 10개의 시편을 제작하여 3차 증류수에 넣은 후 바로 용출시킨 액을 0시간으로 하고
Keywords
- Light sources;
- TEGDMA(Triethyleneglycol dimethacrylate);
- Reverse-phase high performance liquid chromatography(RP-HPLC)
- 광원;
- 역상 크로마토그래피;