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首页> 美国卫生研究院文献>Materials >Effect of Dentin Bonding Agents Various Resin Composites and Curing Modes on Bond Strength to Human Dentin
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Effect of Dentin Bonding Agents Various Resin Composites and Curing Modes on Bond Strength to Human Dentin

机译：牙本质粘接剂各种树脂复合物和固化方式对人牙本质粘接强度的影响

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摘要

This study investigated the influence of several dentin bonding agents, resin composites and curing modes on push-out bond strength to human dentin. 360 extracted caries-free third molars were prepared, cut into slices, embedded in epoxy resin and perforated centrally. One half of the specimens (180) were treated by using one-step adhesive systems and the other half (180) with multi-step adhesive systems. Subsequently, the cavities were filled with either universal, flowable or bulk-fill resin composite according to the manufactures’ product line and cured with either turbo or soft start program. After storage the push-out test was performed. The data was analyzed using Kolmogorov-Smirnov, three- and one-way ANOVA followed by the Scheffé post-hoc test, unpaired two-sample t-test ( < 0.05). The strongest influence on push-out bond strength was exerted by the resin composite type (partial eta squared η = 0.505, < 0.001), followed by the adhesive system (η = 0.138, < 0.001), while the choice of the curing intensity was not significant ( = 0.465). The effect of the binary or ternary combinations of the three parameters was significant for the combinations resin composite type coupled adhesive system (η = 0.054, < 0.001), only. The flowable resin composites showed predominantly mixed, while the universal and bulk-fill resin composite showed adhesive failure types. Cohesive failure types were not observed in any group. Multi-step adhesive systems are preferable to one-step adhesive systems due to their higher bond strength to dentin. Flowable resin composites showed the highest bond strength and should become more important as restoration material especially in cavity lining. The use of a soft start modus for polymerization of resin composites does not enhance the bond strength to dentin.
机译：这项研究调查了几种牙本质粘合剂，树脂复合物和固化方式对与人牙本质的推出粘合强度的影响。制备360颗无龋齿的第三磨牙，切成薄片，嵌入环氧树脂中并在中央打孔。一半的样本（180）通过使用一步粘合系统进行处理，另一半（180）采用多步粘合系统进行处理。随后，根据制造商的产品线，用通用，可流动或批量填充的树脂复合材料填充型腔，并通过涡轮增压或软启动程序对其进行固化。存储后，执行推出测试。使用Kolmogorov-Smirnov，三向和单向方差分析，Scheffé事后检验，未配对的两样本t检验（<0.05）对数据进行了分析。树脂复合材料类型（偏η平方η= 0.505，<0.001）对胶粘剂的推出强度影响最大，其次是胶粘剂体系（η= 0.138，<0.001），而固化强度的选择是不显着（= 0.465）。这三个参数的二元或三元组合的效果仅对于树脂复合型偶联胶系统的组合才有意义（η= 0.054，<0.001）。流动性树脂复合材料主要表现为混合，而通用填充树脂复合材料表现出粘合破坏类型。在任何组中均未观察到内聚破坏类型。多步粘合剂体系比一步粘合剂体系更可取，因为它们与牙本质的粘合强度更高。流动性树脂复合材料显示出最高的粘结强度，作为修复材料尤其在型腔衬里中应变得更加重要。使用软启动方式进行树脂复合材料的聚合不会增强与牙本质的粘合强度。

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