Mossa Hossam, ElKhatat Essam, Hassan Ahmed M, Baroudi Kusai, Beshr Khaled
Department of Restorative Dental Sciences, Alfarabi Colleges, Riyadh, Saudi Arabia.
Department of Preventive Dental Sciences, Alfarabi Colleges, Riyadh, Saudi Arabia.
J Int Soc Prev Community Dent. 2016 Apr;6(Suppl 1):S70-4. doi: 10.4103/2231-0762.181189.
This study was performed to evaluate the bond strength of repaired three types of composite resins under various hyperbaric oxygen (HBO) profiles with various session numbers.
Sixty specimens of three types of composite resin (nanofilled composite, nanohybrid composite and microfilled composite) each type of composite was divided into four group according to various profiles of HBO treatment (control, 2bar, 3 bar and 5 bar). Then, the specimens were repaired; thermocycled, the tensile bond strength were measured. Then the data were analyzed by One-way ANOVA followed by Tukey's post hoc test (α = 0.05).
The highest bond strength was obtained for the repaired nanofilled composite resin specimens while; the lowest bond strength was obtained for the repaired microfilled composite resin specimens. The highest tensile bond strength was recorded for the specimens who treated with the highest pressure of HBO.
The bond strength of repaired nanofilled composite resins is better than the other types of composite resin. The highest pressure of HBO, the highest bond strength of repaired composite resins.
本研究旨在评估在不同高压氧（HBO）条件及不同疗程次数下，三种复合树脂修复后的粘结强度。
制备三种复合树脂（纳米填充复合树脂、纳米混合复合树脂和微填充复合树脂）的样本各60个，每种复合树脂根据不同的HBO处理条件（对照组、2巴、3巴和5巴）分为四组。然后，对样本进行修复、热循环处理，测量拉伸粘结强度。之后，数据采用单因素方差分析，随后进行Tukey事后检验（α = 0.05）。
修复后的纳米填充复合树脂样本获得了最高的粘结强度，而修复后的微填充复合树脂样本获得了最低的粘结强度。接受最高HBO压力处理的样本记录到最高的拉伸粘结强度。
修复后的纳米填充复合树脂的粘结强度优于其他类型的复合树脂。HBO压力越高，修复后的复合树脂粘结强度越高。
