Robertson Lindsay, Phaneuf Melissa, Haimeur Asmaa, Pesun Igor, França Rodrigo
Dental Biomaterials Research Lab, College of Dentistry, University of Manitoba, Winnipeg, Manitoba R3E0W2, Canada.
Department of Restorative Dentistry, College of Dentistry, University of Manitoba, Winnipeg, Manitoba R3E0W2, Canada.
Dent J (Basel). 2016 Oct 27;4(4):37. doi: 10.3390/dj4040037.
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.
本研究通过比较两种不同方案，调查了氧抑制层对三种牙科粘合剂固化程度（DC）的影响。使用石英钨卤素（QTH）光固化和发光二极管（LED）对三种粘合剂进行固化：全效粘结剂（OAIO）、易粘结剂（AEB）和ExciteF（EXF）。利用傅里叶变换红外光谱（FTIR）计算固化程度（n = 12）。所采用的两种方案如下：（i）使用聚酯薄膜塑料条压在每种粘结粘合剂上以防止氧抑制层；（ii）不使用塑料条对样品进行聚合。数据通过三因素方差分析和Tukey检验进行统计学分析（α = 0.05）。氧抑制层的存在使EXF粘合剂的固化程度降低了64%，AEB降低了46%，OAIO降低了32%。本研究表明，所测试的粘合剂的氧抑制层存在差异。
