2013
DOI: 10.4025/actascitechnol.v35i3.16238
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<b>The effect of different photoactivation sources on a nanocomposite resin: LED, halogen and argon laser application</b> - doi: 10.4025/actascitechnol.v35i3.16238

Abstract: ABSTRACT. This paper evaluates the effects of different light sources on the monomer conversion (DC%) and Vickers microhardness number (VHN) of a nanocomposite resin. Three different depths were measured in this study (1, 2 and 3 mm), and photoactivation methods including a halogen lamp, a LED and an argon ion laser were used. In contrast to other studies, the conditions for each photoactivation source such as the exposure time and the same power density were considered and kept the same. It was also shown tha… Show more

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Cited by 4 publications
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“…The most commonly used photoinitiator system is camphorquinone (CQ) combined with a tertiary amine. CQ is responding to wavelengths between 400 and 500 nm with a peak at k max = 468 nm (6,7). Various light sources have been used for photopolymerization of composite resins, such as quartz-tungsten-halogen lamps, plasma arc lamps, light-emitting diodes (LED), or lasers (mostly argon and diodes), each one bearing different characteristics, such as wavelength range, absorption peak, and power density.…”
mentioning
confidence: 99%
“…The most commonly used photoinitiator system is camphorquinone (CQ) combined with a tertiary amine. CQ is responding to wavelengths between 400 and 500 nm with a peak at k max = 468 nm (6,7). Various light sources have been used for photopolymerization of composite resins, such as quartz-tungsten-halogen lamps, plasma arc lamps, light-emitting diodes (LED), or lasers (mostly argon and diodes), each one bearing different characteristics, such as wavelength range, absorption peak, and power density.…”
mentioning
confidence: 99%