乙醇湿粘结技术对全酸蚀粘结剂粘结强度和杂化层形态的影响

发布时间：2018-06-12 04:14

本文选题：牙本质粘结 + 乙醇湿粘结　；参考：《牙体牙髓牙周病学杂志》2014年02期

【摘要】：目的:评价水湿粘结和乙醇湿粘结操作技术对即刻粘结强度和粘结耐久性的影响。方法:利用乙醇湿粘结、水湿粘结技术和全酸蚀粘结系统Single Bond 2(SB)以及Prime Bond NT(PB)制备牙本质片粘结试件。微拉伸实验检测即刻粘结强度;并测试老化处理(100 g/L次氯酸钠液浸泡2 h)后的粘结强度,扫描电镜观察各组杂化层的微观形貌。每项实验用5个粘结试件。结果:与水湿粘结技术相比,乙醇湿粘结技术可获得与PB组相似(P0.05)或者比SB组更高(P0.05)的即刻粘结强度;老化处理后的粘结强度显著高于相应的水湿粘结组(SB组和PB组)(P0.05);乙醇湿粘结试件的杂化层清晰完整、质地均一。结论:乙醇湿粘结技术可提高全酸蚀粘结剂的牙本质粘结强度和粘结耐久性,获得界限明确、质地均一的杂化层。
[Abstract]:Aim: to evaluate the effect of wet bonding and ethanol wet bonding on immediate bond strength and bond durability. Methods: the adhesive specimens of dentin were prepared by ethanol wet bonding, water wet bonding, single Bond 2 / SB and Prime Bond NTN PBB. The immediate bond strength was measured by microtensile test, and the bond strength of 100 g / L sodium hypochlorite solution was tested after immersion for 2 h. The microstructure of the hybrid layer was observed by SEM. Five bonded specimens were used for each experiment. Results: compared with water-wet bonding technique, ethanol wet bonding technique could obtain immediate bond strength similar to PB group (P 0.05) or higher than SB group (P 0.05). The bonding strength of the aged specimens was significantly higher than that of the water / wet bonding groups (SB and PB), and the hybrid layer of the ethanol wet bonded specimens was clear and complete, and the texture of the samples was uniform. Conclusion: ethanol wet bonding technology can improve the dentine bond strength and bond durability of total acid etching binder, and obtain the hybrid layer with clear boundary and uniform texture.
【作者单位】：解放军323医院口腔科;第四军医大学口腔医学院;
【基金】：国家自然科学基金资助项目(81100772)
【分类号】：R783.1

【共引文献】