Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)
- Volume 32 Issue 2
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- Pages.284-292
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- 2005
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- 1226-8496(pISSN)
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- 2288-3819(eISSN)
A STUDY OF MONOMER RELEASE FROM PIT AND FISSURE SEALANTS ACCORDING TO VARIOUS LIGHT SOURCES
광원에 따른 수종의 치면열구전색제로부터 용리되는 모노머에 관한 연구
- Seo, Hyun-Woo (Department of Pediatric Dentistry, College of Dentistry, Kangnung National University Oral Science Research Center, College of Dentistry, Kangnung National University) ;
- Park, Ho-Won (Department of Pediatric Dentistry, College of Dentistry, Kangnung National University Oral Science Research Center, College of Dentistry, Kangnung National University)
- Published : 2005.05.31
Abstract
The aim of this study was to identify and quantify the major or detectable monomers released from any of five commercially-available, light-cured pit and fissure sealants with three different light sources : conventional halogen light curing unit, plasma arc light curing unit and LED curing unit. After curing, specimens were immediately immersed in distilled water for different time intervals. The time related release of monomers were analyzed by high performance liquid chromatography(HPLC). Identification and quantitative analysis of monomers were performed by the comparison of the elution time and the absorption peak height of the eluates with those of the authentic sample. The result of this study can be summarized as follows. 1. Standard solution peaks with retention times of 2.3, 3.2, 5.6, 6.5, 10.4 minutes were identified as BPA, TEGDMA, UDMA, Bis-GMA, Bis-DMA, respectively. 2. None of the chromatograms of the tested sealants displayed peaks with the same retention time as that of the standard solution, except for TEGDMA. 3. The highest release rate of TEGDMA was observed during the 12hr period for all samples and declined thereafter. 4. The elution of TEGDMA from curing with Halogen curing unit for 20 second and LED for 10 second was less than that resulting from curing with Plasma arc for 3 second. 5. TEGDMA was detected at much lower levels in eluates from the Pit & Fissure
본 연구에서는 치과용 복합레진의 중합률에 영향을 미치는 다양한 광원인 할로겐, 플라즈마, LED를 사용하여 임상에서 사용하는 여러 치면열구전색제들을 중합 시, 이로부터 용리되는 미반응 모노머들을 확인하고 정량화하고자 하였다. 5가지의 광중합형 치면열구전색제를 각각의 광원에 따라 중합한 시편을 제작하여 3차 증류수에 넣은 후 바로 용리시킨 액을 0시간으로 하고