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Dent. J. 2016, 4(4), 37; doi:10.3390/dj4040037

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

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
Received: 15 August 2016 / Revised: 22 September 2016 / Accepted: 3 October 2016 / Published: 27 October 2016
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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
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Robertson, L.; Phaneuf, M.; Haimeur, A.; Pesun, I.; França, R. Degree of Conversion and Oxygen-Inhibited Layer Effect of Three Dental Adhesives. Dent. J. 2016, 4, 37.

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