Effect of led light curing on the marginal sealing of composite resin restorations.
Light-emitting diode (LED) curing units are becoming increasingly popular; however, questions remain about their ability to adequately polymerize composite resins. This study was conducted to evaluate the marginal seal of restorations placed with a tungsten halogen curing unit compared to three LED curing units through a microleakage test. The results did not indicate statistical differences between the groups tested for both enamel and dentin margins. Variation of the light-curing unit (quartz tungsten halogen or LED) did not result in discernible differences in the marginal sealing of composite restorations.
Sensi
Luis Guilherme
LG
Department of Operative Dentistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil. luis_sensi@hotmail.com
Junior
Sylvio Monteiro
SM
Baratieri
Luiz Narciso
LN
D017438:Bisphenol A-Glycidyl Methacrylate / Q000528:radiation effects; D003188:Composite Resins / Q000528:radiation effects*; D003748:Dental Equipment; D003763:Dental Leakage / Q000517:prevention & control*; D018772:Dental Marginal Adaptation; D006219:Halogens; D006244:Hardness; D006801:Humans; D008027:Light; D008964:Molar, Third; D044367:Phase Transition; D019279:Resin Cements / Q000528:radiation effects; D012666:Semiconductors
D003188:Composite Resins; C444701:Filtek Z250; D006219:Halogens; D019279:Resin Cements; C115612:single bond; D017438:Bisphenol A-Glycidyl Methacrylate