Composite Photopolymerization: Temperature Increase According To Light Source And Dentin Thickness
نویسندگان
چکیده
منابع مشابه
Temperature Rise during Primer, Adhesive, and Composite Resin Photopolymerization of a Low-Shrinkage Composite Resin under Caries-Like Dentin Lesions
Objective. This study evaluated temperature rise of low-shrinkage (LS) self-etch primer (P), LS self-etch adhesive (A), and P90 silorane-based composite resin systems, photopolymerized under normal and artificially demineralized dentin. Methods. Forty 1.5 mm-thick dentin discs were prepared from sound human molars, half of which were demineralized. Temperature rise was measured during photopoly...
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Objective: Shear bond strength is an important property inherent to the durability of tooth-colored restorative materials namely composite resins. It has been years that halogen light sources have been used for polymerization of composite resins. In recent years Light Emitting Diodes (LED) have been introduced for this purpose. With respect to their longer bulb life, needless of a filter and ...
متن کاملInfluence of the light curing unit and thickness of residual dentin on generation of heat during composite photoactivation.
The aim of this study was to determine the effect of different types of composites (Filtek Z250, Esthet X and Filtek Supreme) and dentin thicknesses (0.5 or 1.0 mm) on the generation of heat during photoactivation by QTH (conventional halogen light), LED (light emitting diode), and PAC (xenon plasma light) light-curing units. Temperature changes were recorded with a thermocouple type K connecte...
متن کاملInfluence of Light Energy Density on Heat Generation during Photoactivation of Dental Composites with Different Dentin and Composite Thickness
OBJECTIVE The aim of this study was to determine the influence of different energy densities on the heat generated during photoactivation of Filtek Z250 (3M/ESPE) and Z100 (3M/ESPE) composite resins with different dentin and composite thickness. MATERIAL AND METHODS The temperature increase was registered with a type-K thermocouple connected to a digital thermometer (Iopetherm 46). A chemical...
متن کاملEffects of composite thickness on the shear bond strength to dentin.
The manufacturers of some condensable posterior composites claim that their products can be placed in bulk and light-cured in 5-mm-thick increments. This study compared the shear bond strengths of three composite resins when bonded to dentin in 2- and 5-mm-thick increments. Overall the bond strengths were adversely affected by the composite thickness (p < 0.0001). The shear bond strength of eac...
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ژورنال
عنوان ژورنال: Journal of Dentistry And Oral Implants
سال: 2016
ISSN: 2473-1005
DOI: 10.14302/issn.2473-1005.jdoi-16-1080