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A review of the development of radical photopolymerization initiators used for designing light-curing dental adhesives and resin composites
Radical photopolymerization Photoinitiator Light-curing dental adhesive
2010/11/30
This paper reviews our recent studies on radical photopolymerization initiators, which are used in the design of light-curing dental adhesives and resin composites, by collating information of related...
Effectiveness of composite resin polymerization using light-emitting diodes (LEDs) or halogen-based light-curing units
Composite resins Spectrophotometry
2009/10/20
The clinical performance of composite resins is greatly influenced by the quality of the light-curing unit used. The aim of this study was to compare the efficiency of a commercial light-emitting diod...
Effect of light curing tip distance and resin shade on microhardness of a hybrid resin composite
Composite resins Hardness
2009/10/20
Resin composite shades and resin composite polymerization performed with a distanced light tip are factors that can affect polymerization effectiveness. Thisin vitro study aimed to evaluate the influe...
Influence of composite restorative materials and light-curing units on diametrical tensile strength
Light emitting diode Composite resins Diametrical tensile strength Mechanical properties
2009/10/19
The aim of this study was to evaluate the diametrical tensile strength (DTS) of three light-curing photo-activated composites with two different light curing units (LCU). Three types of dental restora...
Hardness of a bleaching-shade resin composite polymerized with different light-curing sources
Composite resins Dental materials Hardness
2009/10/19
The microhardness of a bleaching-shade resin composite polymerized with different light-curing units was evaluated. Composite samples (3M ESPE Filtek Supreme) were applied to brass rings (2 mm in thic...
Influence of different light curing units on the bond strength of indirect resin composite restorations
Resin cements Composite resins
2009/10/16
The aim of this study was to evaluate the influence of different light sources on the bond strength of indirect resin composite restorations cemented with a dual-cure resin cement. The superficial den...
Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement
Resin cements Hardness Composite resins Dental porcelain
2009/10/16
This study evaluated the Knoop hardness of a dual-cured resin cement (Rely-X ARC) activated solely by chemical reaction (control group) or by chemical / physical mode, light-cured through a 1.5 mm thi...
Reducing, by Pulse Width Modulation,the Curing Temperature of a Prototype High-power LED Light Curing Unit
Light emitting diode (LED) Light curing units (LCUs) Pulse width modulation (PWM)
2009/9/14
Third-generation LEDs have high irradiance and efficiency, but the associated temperature rise is potentially hazardous to the pulp of teeth. We evaluated, during composite polymerization, the irradia...
Resin Infiltration of Artificial Enamel Caries Lesions with Experimental Light Curing Resins
Caries Infiltration Infiltrant
2009/9/14
To prevent enamel lesions from further demineralization, a complete and homogeneous penetration of low-viscosity resins (‘infiltrants’) should be accomplished. With commercially available adhesives, t...
Effects of adding methacrylate monomers on viscosity and mechanical properties of experimental light-curing soft lining materials based on urethane (meth)acrylate oligomers.
Soft lining material Mechanical property Urethane oligomer
2009/9/14
We investigated the viscosity and mechanical properties of experimental light-curing soft lining materials based on six commercially available urethane (meth)acrylate oligomers. The viscosities of the...
Effects of Light Curing Modes and Resin Composites on Temperature Rise under Human Dentin: An in vitro Study
Temperature rise Composites Polymerization
2009/9/11
The influence of three curing modes of a high-powered LED curing unit on temperature rise under 2-mm-thick dentin was investigated during the polymerization of resin composite samples of Admira, Filte...
The Effects of Light Intensity and Light-curing Time on the Degree of Polymerization of Dental Composite Resins
Light intensity Light-curing time Polymerization
2009/9/11
The aim of this study was to investigate the effects of light intensity and light-curing time on the polymerization of composite resins. Four composite resins were light-cured with different light-cur...
Stability and Reproducibility of Radiometric Properties of Light Curing Units (LCUs). Part II: LED LCUs
LED light curing units (LED LCUs) Radiometric properties Spectral emission
2009/9/11
The present work is the second part of a study on the stability and reproducibility of the energy and spectral emission of some light curing units (LCUs). In this part, Part II, LED LCUs were investig...
Stability and Reproducibility of Radiometric Properties of Light Curing Units (LCUs). Part I: QTH LCUs
Quartz tungsten halogen light-curing unit (QTH LCUs) Radiometric properties Spectral emission
2009/9/11
The present study, divided into two parts, analyses the stability and reproducibility of the spectral and energy emission of the present light-curing units (LCUs), quartz tungsten halogen (QTH) and li...
Effect of Inhomogeneity of Light from Light Curing Units on the Surface Hardness of Composite Resin
Light curing unit Light intensity Knoop hardness number
2009/9/11
This study investigated the characteristics of output light from different types of light curing units, and their effects on polymerization of light-activated composite resin. Three quartz-tungsten-ha...