北京大学学报（医学版）2015，Vol.47Issue(6)：1005-1009,5.DOI:10.3969/j.issn.1671-167X.2015.06.021
玻璃纤维桩表面经聚多巴胺或硅烷化处理后的微推出粘接强度对比研究
Comparative research for micro-push-out bond strengths of glass fiber posts treated by poly-dopamine or silane coupling agent
摘要
Abstract
Objective:To evaluate the micro-push-out bond strengths of prefabricated glass fiber posts with poly-dopamine functionalized to root dentin using resin cements, contrasted with silane treatment. Methods:In the study, 30 glass fiber posts were randomly divided into 3 groups ( 10 posts in each group) for different surface treatments. Group 1, treated with poly-dopa; Group 2, treated with silane coupling agent for 60s;Group 3, no surface treatment (Control group). The 30 extracted human, single-rooted teeth were endodontically treated and a 9 mm post space was prepared in each tooth with post drills provided by the manufacturer. Following post cementation, the specimens were stored in distilled water at 37 ℃ for 7 days. The micro-push-out bond strengths were tested using a universal testing machine (0. 5 mm/min), and the failure modes were examined with a stereomicroscope. The data of the three groups were statistically analyzed using the one-way ANOVA test(α= 0. 05). Results:The bond strengths were (7. 909 ± 1. 987) MPa for Group 1, (5. 906 ± 0. 620) MPa for Group 2, and 4. 678 ± 0. 910 MPa for Group 3 . The bond strength of poly-dopamine group was significantly higher than that of the silane group (P<0. 05). Conclusion: Contrasted with silane treatment, surface poly-dopamine functionaliza-tion was confirmed to be a more reliable method for improving the bond strength of resin luting agents to fiber posts.关键词
玻璃纤维桩/聚多巴胺/硅烷化/微推出粘接强度Key words
Glass fiber posts/Poly-dopamine/Silane/Push-out bond strength分类
医药卫生引用本文复制引用
陈倩,苏永亮,蔡晴,白云洋,苏靖,王新知..玻璃纤维桩表面经聚多巴胺或硅烷化处理后的微推出粘接强度对比研究[J].北京大学学报（医学版）,2015,47(6):1005-1009,5.基金项目
国家高技术研究发展计划(863 计划2011AA030102)和国家新世纪优秀人才基金(NCET-11-0556)资助Supported by National High Technology Research and Development Program of China (863 proqram, 2011AA030102) and Program for New Century Excellent Talents in Uni-versity(NCET-11-0556) （863 计划2011AA030102）
