Degree of Conversion and Oxygen-Inhibited Layer Effect of Three Dental AdhesivesReport as inadecuate


Degree of Conversion and Oxygen-Inhibited Layer Effect of Three Dental Adhesives


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1

Dental Biomaterials Research Lab, College of Dentistry, University of Manitoba, Winnipeg, Manitoba R3E0W2, Canada

2

Department of Restorative Dentistry, College of Dentistry, University of Manitoba, Winnipeg, Manitoba R3E0W2, Canada





*

Author to whom correspondence should be addressed.



Academic Editor: Patrick R. Schmidlin

Abstract This study investigated the effect of the oxygen-inhibited layer on the degree of conversion DC of three dental adhesives, comparing two different protocols. Quartz–tungsten–halogen QTH light curing and light-emitting diode LED were used to cure three adhesives: OptiBond All in One OAIO, Adper Easy Bond AEB and ExciteF EXF. The DC was calculated utilizing Fourier Transform infrared spectroscopy FTIR n = 12. The two protocols used were as follows: i prevent the oxygen-inhibited layer using a Mylar plastic strip pushed onto each bonding adhesive; and ii polymerize samples without a plastic strip. The data was analyzed statistically by a three-way ANOVA, and Tukey Test a = 0.05. The presence of an oxygen-inhibited layer reduced the DC of the adhesives by 64% for EXF, 46% for AEB and 32% for OAIO. This study suggests that there are differences among the oxygen-inhibited layers present for the adhesives tested. View Full-Text

Keywords: self-etch adhesives; degree of conversion; oxygen-inhibited layer self-etch adhesives; degree of conversion; oxygen-inhibited layer





Author: Lindsay Robertson 1, Melissa Phaneuf 1, Asmaa Haimeur 2, Igor Pesun 2 and Rodrigo França 1,2,*

Source: http://mdpi.com/



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