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Published in: Lasers in Medical Science 3/2010

01-05-2010 | Original Article

Effect of diode-pumped solid state laser on polymerization shrinkage and color change in composite resins

Authors: Yun-Hoa Jung, Bong-Hae Cho, Kyung-Soo Nah, Hyung-Il Kim, Yong Hoon Kwon

Published in: Lasers in Medical Science | Issue 3/2010

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Abstract

A diode-pumped solid state (DPSS) laser emitting at 473 nm was used to test its influence on the degree of polymerization of composite resins. Eight composite resins were chosen and light cured with three different light-curing systems [a quartz–tungsten–halogen (QTH) lamp-based unit, a light-emitting diode (LED) unit, and a DPSS laser]. Polymerization shrinkage and color change in specimens were measured. According to the statistical analysis, each light-curing system produced a significantly different value of maximum polymerization shrinkage. In most specimens, the DPSS laser induced the least polymerization shrinkage. After being immersed in distilled water for 10 days, specimens light-cured by the DPSS laser had undergone less color change than those cured by the other units. In conclusion, the DPSS laser induced better or similar polymerization in terms of polymerization shrinkage and color change in composite resins compared with those of the QTH lamp-based and LED units.
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Metadata
Title
Effect of diode-pumped solid state laser on polymerization shrinkage and color change in composite resins
Authors
Yun-Hoa Jung
Bong-Hae Cho
Kyung-Soo Nah
Hyung-Il Kim
Yong Hoon Kwon
Publication date
01-05-2010
Publisher
Springer-Verlag
Published in
Lasers in Medical Science / Issue 3/2010
Print ISSN: 0268-8921
Electronic ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-009-0644-9

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