Effect of light-exposure duration on the amount of leachable monomers from light-activated reline material.
Leaching of monomers from light-activated direct intraoral reline material (Lebaron LC) was determined by means of high-pressure liquid chromatography analysis. This study evaluated the effects of exposure duration and thickness to determine appropriate curing conditions that reduce the levels of unreacted monomeric components. Prolonged duration of exposure (30 minutes) reduced the amount of leached monomer. However, the results of this study indicated that the amount of leached monomeric components increased with an increasing reline material thickness. The results suggest that the light-activated reline material should be cured for sufficient prolonged exposure duration.
Kawaguchi
M
M
Department of Dental Materials, Fukuoka Dental College, Japan.
Takahashi
Y
Y
Fukushima
T
T
Habu
T
T
D002851:Chromatography, High Pressure Liquid; D003764:Dental Materials / Q000032:analysis / Q000737:chemistry* / Q000528:radiation effects; D003823:Denture Rebasing; D008027:Light; D008689:Methacrylates / Q000032:analysis / Q000737:chemistry* / Q000528:radiation effects; D020366:Methylmethacrylate; D008768:Methylmethacrylates / Q000032:analysis / Q000737:chemistry / Q000528:radiation effects; D011109:Polymethacrylic Acids / Q000032:analysis / Q000737:chemistry / Q000528:radiation effects; D011140:Polyurethanes / Q000032:analysis / Q000737:chemistry / Q000528:radiation effects; D013499:Surface Properties; D013997:Time Factors
D003764:Dental Materials; D008689:Methacrylates; D008768:Methylmethacrylates; D011109:Polymethacrylic Acids; D011140:Polyurethanes; C029824:urethane dimethacrylate luting resin; D020366:Methylmethacrylate; C008968:poly(isobutyl methacrylate); C028643:trimethylolpropane trimethacrylate