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KMID : 1004520170330040245
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Journal of Dental Rehabilitation and Applied Science
2017 Volume.33 No. 4 p.245 ~ p.251
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Characteristic of LED light curing unit and classification by generation for c
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Shim Young-Bo
Choi An-Na
Park Jeong-Kil
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Abstract
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Since light curing composite resin was introduced in the 1960s, light curing process has been considered as an essential process. Herein, various light sources became available for the process. Quartz-tungsten-halogen (QTH) light curing units (LCUs) dominated the market until the 1990s, before the LED LCUs started replacing them in the 2000s. The LED, developed approximately 50 years ago, came into use in the dentistry field from the late 1990s, and the LED LCUs, with the 2000s. Since then, the LED LCUs have gone through many advancements to its current fourth generation. In accordance to such advancements of the LED light curing unit, the majority of light curing unit used today are LED LCUs. As much as its usage has increased, it is necessary that dental clinicians understand the characteristics of the device. The objective of this review report is to provide the history of the scientific development and describe the characteristics of the LED LCUs.
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KEYWORD
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LED, light curing unit, characteristic, generation
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