Degree of conversion of adhesive systems light-cured by LED and halogen light

This study evaluated the effect of blue light emitting diode (LED) and quartz tungsten halogen (QTH) on the degree of conversion (DC) of an etch-and-rinse Single Bond adhesive system (SB) and a mixture composed of primer solution and resin bond from Clearfil SE Bond self-etching adhesive system (CB)...

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Bibliographic Details
Published in:Brazilian dental journal 2007, Vol.18 (1), p.54-59
Main Authors: Arrais, Cesar Augusto Galvão, Pontes, Fenelon Martinho, Santos, Luis Presley Serejo Dos, Leite, Edson Roberto, Giannini, Marcelo
Format: Article
Language:English
Subjects:
Adhesives - chemistry
Adhesives - radiation effects
Bisphenol A-Glycidyl Methacrylate - chemistry
Bisphenol A-Glycidyl Methacrylate - radiation effects
Dentistry
Halogens - administration & dosage
Light
Resin Cements - chemistry
Resin Cements - radiation effects
Spectroscopy, Fourier Transform Infrared - methods
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Summary:This study evaluated the effect of blue light emitting diode (LED) and quartz tungsten halogen (QTH) on the degree of conversion (DC) of an etch-and-rinse Single Bond adhesive system (SB) and a mixture composed of primer solution and resin bond from Clearfil SE Bond self-etching adhesive system (CB) using Fourier transform infrared analysis (FTIR). Adhesives were applied to potassium bromide pellet surfaces and FTIR analyses were performed before and after photo-activation for 10 s with either LED (Freelight 1 - 400 mw/cm(2)) or QTH (XL 3000 - 630 mw/cm(2)) light-curing units (n=8). Additional FTIR spectra were obtained from photo-activated samples stored in distilled water for 1 week. The DC was calculated by comparing the spectra obtained from adhesive resins before and after photo-activation. The results were analyzed by two-way split-plot ANOVA and Tukey's test (p
ISSN:0103-6440
0103-6440
DOI:10.1590/s0103-64402007000100012