检验医学与临床2018，Vol.15Issue(13)：1875-1878,4.DOI:10.3969/j.issn.1672-9455.2018.13.003
纳米复合树脂粘合强度影响因素分析
Analysis of factors affecting adhesion strength of Nanocomposite resin
摘要
Abstract
Objective To evaluate the effects of different surface treatments ,silane coupling agents and binders on the bonding strength of nanocomposite resin restorations .Methods A total of 144 samples were prepared by filling with A2 nanocomposite resin material ,according to the polishing method [polishing alone (P) ,air friction after polishing (A)] ,and silane coupling agent (CP silane coupling agent ,MDP silane coupling agent) ,the binder [hydrophobic binder(H) ,universal binder(U)]is divided into 12 groups ,AH ,ACH ,AMH , AU ,ACU ,AMU ,PH ,PCH ,PMH ,PU ,PCUand PMU group ,12 cases in each group .After 48 h all specimens were subjected to a microshear test and the load intensity at the time of fracture was recorded .The fracture type was analyzed under optical fiber microscope .All data were analyzed using statistical software .Results After air polishing ,the repair adhesive strength was higher than that of the polished samples except the AH group (P＜ 0 .05).In the air-worn samples after polishing ,the difference was statistically significant (P＜0 .05) in the ACH group compared to the AH group treated with the hydrophobic binder only .The PH group had the lowest repair adhesive strength (P＜0 .05).Most of the fractures in the air-wear samples in the com-posite repair occurred on the surface of the adhesive (P＜0 .05) ,and most of the separately polished samples were of the mixed type (P＜0 .05).More than 80% of the adhesive broke in the PH group (P＜0 .05).Conclu-sion The use of alumina particles after polishing can increase the repair adhesive strength of nanocomposites . Separately polished samples and hydrophobic binders have the lowest bonding strength ,Whether the MDP si-lane coupling agent was used was not statistically significant in terms of adhesive strength .In air-abrasive sam-ples after polishing ,the use of a universal adhesive alone is also effective in combination with any silane and binder .关键词
硅烷偶联剂/粘结剂/纳米复合树脂/粘合强度Key words
silane coupling agent/binder/nanocomposite resin/bonding strength分类
医药卫生引用本文复制引用
徐杰,胡姝娥,杨丽丽,张学兵..纳米复合树脂粘合强度影响因素分析[J].检验医学与临床,2018,15(13):1875-1878,4.基金项目
河北省沧州市科技局基金资助项目(1213074ZD) （1213074ZD）
