This study investigated the effect of the oxygen-inhibited layer on the degree of conversion\n(DC) of three dental adhesives, comparing two different protocols. Quartzââ?¬â??tungstenââ?¬â??halogen\n(QTH) light curing and light-emitting diode (LED) were used to cure three adhesives: OptiBond\nAll in One (OAIO), Adper Easy Bond (AEB) and ExciteF (EXF). The DC was calculated utilizing\nFourier Transform infrared spectroscopy (FTIR) (n = 12). The two protocols used were as follows:\n(i) prevent the oxygen-inhibited layer using a Mylar plastic strip pushed onto each bonding adhesive;\nand (ii) polymerize samples without a plastic strip. The data was analyzed statistically by a three-way\nANOVA, and Tukey Test (a = 0.05). The presence of an oxygen-inhibited layer reduced the DC of\nthe adhesives by 64% for EXF, 46% for AEB and 32% for OAIO. This study suggests that there are\ndifferences among the oxygen-inhibited layers present for the adhesives tested.
Loading....