In order to simplify the technique while maintaining its effective clinical performance, as well as its adhesive properties, universal adhesive systems are constantly launched in the market. Thus, the objective of this study was to compare the presence or absence of moisture in the adhesion technique using a universal adhesive system, the Single Bond Universal (3M ESPE). There were selected forty-five human molars with indications for exodontia that were divided into three experimental groups: Single Bond Universal (3M ESPE) with and without moisture in the dentin; Scotchbond Multi-Bottles (3M ESPE) conventional technique (control). The characterization methods used were: microshear and scanning electron microscopy. Statistical analysis of variance analysis (single-factor ANOVA) and Tukey’s multiple comparison, global significance level of 5% were used. It was observed through the micro-test that there were no statistically significant differences between the groups tested. Scanning electron microscopy analysis showed that the most frequent failure mode was the adhesive type (91%), followed by the mixed type fracture (8%) and the cohesive type (1%). It was concluded through this study that, regardless of the moisture (present or absent), the Single Bond Universal adhesive system showed bond strength similar to the conventional adhesive.

中文翻译：

---

使用通用胶粘剂系统比较不同的胶粘剂技术

为了简化该技术，同时保持其有效的临床性能以及其粘合性能，通用粘合剂系统一直在市场上投放市场。因此，本研究的目的是比较使用通用粘合剂系统Single Bond Universal（3M ESPE）的粘合技术中水分的存在与否。选择了45种具有牙髓外指征的人类臼齿，将其分为三个实验组：单键通用（3M ESPE），在牙本质中有水分和无水分；Scotchbond Multi-Bottles（3M ESPE）常规技术（对照）。使用的表征方法是：微剪切和扫描电子显微镜。方差分析（单因素方差分析）和Tukey的多重比较的统计分析，全球显着性水平为5％。通过微型测试观察到，测试组之间没有统计学上的显着差异。扫描电子显微镜分析表明，最常见的失效模式是粘合型（91％），其次是混合型断裂（8％）和内聚型（1％）。通过这项研究得出的结论是，无论湿气（存在或不存在），单键通用胶粘剂体系的粘合强度都与传统胶粘剂相似。