Characteristic of LED light curing unit and classification by generation for clinicians
نویسندگان
چکیده
منابع مشابه
Evaluation of a second-generation LED curing light.
BACKGROUND Light-emitting diode (LED) curing lights offer advantages over quartz-tungsten-halogen (QTH) lights, but the first-generation LED lights had some disadvantages. PURPOSE This study compared a second-generation LED light with a QTH light to determine which was better at photopolymerizing a variety of resin composites. METHODS The ability of a LED light used for 20 and 40 seconds to...
متن کاملCuring depth of composite resin light cured by LED and halogen light-curing units
The purpose of this study was to evaluate the polymerization effectiveness of a composite resin (Z-250) utilizing microhardness testing. In total, 80 samples with thicknesses of 2 and 4 mm were made, which were photoactivated by a conventional halogen light-curing unit, and light-curing units based on LED. The samples were stored in water distilled for 24 h at 37 ° C. The Vickers microhardness ...
متن کاملColor Stability of a Microhybrid Resin Composite Polymerized with LED and QTH Light Curing Units
Introduction: Discoloration of resin composites is a common reason for replacement of these restorations. The aim of this study was to eva-luate the influence of different light curing de-vices on color stability of a microhybrid resin composite. Materials and Methods: 80 disc-shaped speci-mens (8 mm in diameter, 2-mm height) were fabricated from filtek Z250 resin composite. Specimens wer...
متن کاملEffectiveness of second-generation light-emitting diode (LED) light curing units.
AIM The purpose of this study was to evaluate the effectiveness of three commercially available light emitting diode (LED) light curing units (LCU) (Elipar FreeLight--3M ESPE; UltraLume LED2--Ultradent; and Single V--BioArt) for polymerizing Z250-A3 composite (3M ESPE) using Knoop hardness, polymerization depth, and flexural strength properties. METHODS AND MATERIALS The XL 2500 (3M ESPE) LCU...
متن کاملEffect of high-power LED light curing unit on bond strength of composite resin to dentin
Purpose: This study evaluated the effect of a high-power solid-state light emitting diode (LED) curing unit on the dentin bond strength of a composite resin with self-etching primer adhesives by means of microtensile bond test. Materials and Methods: The flat dentin surfaces of the extracted human molars were prepared. Each surface was treated with either two self-etching adhesive systems (Clea...
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ژورنال
عنوان ژورنال: Journal of Dental Rehabilitation and Applied Science
سال: 2017
ISSN: 2384-4353,2384-4272
DOI: 10.14368/jdras.2017.33.4.245