School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Disease.
School of Stomatology, Jilin University.
Dent Mater J. 2021 Jan 31;40(1):116-122. doi: 10.4012/dmj.2019-280. Epub 2020 Aug 28.
The purpose of this study was to evaluate the air-blowing temperature and water storage time on the micro-tensile bond strength (μTBS) of five universal adhesive systems to dentin. The bond strength with two different air-blowing temperatures (60±2ºC and 23±2ºC) was measured after water storage at 37ºC for 24 h and 100 days respectively. The fracture surface on dentin side was observed by scanning electron microscope (SEM). Three-way ANOVA revealed a significant effect of universal system (p<0.001) and air-blowing temperature (p<0.001) on bond strength to dentin except water-storage time (p=0.145). The interaction within three factors was significantly different (p<0.001). It could be concluded that the μTBS of universal systems to dentin was material-depended. The higher and more stable bonding performance of universal systems on dentin could be achieved by air-blowing at 60±2ºC temperature. In addition, the quantity of voids in the adhesive layer of aceton-based universal adhesive was significantly reduced by higher temperature.
本研究旨在评估吹气温度和储水时间对五种通用型牙本质粘结剂的微拉伸粘结强度（μTBS）的影响。分别在 37°C 下储存 24 小时和 100 天后，测量两种不同吹气温度（60±2°C 和 23±2°C）下的粘结强度。通过扫描电子显微镜（SEM）观察牙本质侧的断裂面。三因素方差分析显示，通用型粘结系统（p<0.001）和吹气温度（p<0.001）对牙本质粘结强度有显著影响，而储水时间（p=0.145）无显著影响。三个因素之间的交互作用有显著差异（p<0.001）。由此可以得出结论，通用型粘结系统对牙本质的 μTBS 取决于材料。通过 60±2°C 的吹气温度，可以实现通用型粘结系统对牙本质更高、更稳定的粘结性能。此外，较高的温度可以显著减少基于丙酮的通用型粘结剂粘结层中的空隙数量。
