4种牙色充填材料与乳牙粘结强度的比较研究  

Research on the Adhesive Strength of Four Tooth-colored Restorations to the Primary Tooth

作　　者：康洁[1] 李岩[1] 白荣[1] 邓婧[2] 

机构地区：[1]聊城市人民医院口腔科,山东聊城252000 [2]青岛大学医学院附属医院口腔科

出　　处：《口腔医学研究》2013年第11期1060-1061,1064,共3页Journal of Oral Science Research

摘　　要：目的:比较4种牙色充填材料与乳磨牙的剪切粘结强度,为临床应用提供理论依据。方法:选用滞留乳磨牙80颗,随机分成8组,分别用复合树脂、多聚酸改良复合树脂、树脂改良玻璃离子、玻璃离子及相对应的酸蚀粘结剂或齿面处理剂按使用说明制作牙釉质和牙本质粘结试件,测定其剪切强度,并在体视显微镜下观察试件断面界面破坏情况。结果:4种牙色材料的剪切强度牙釉质组均明显高于牙本质组,复合树脂与多聚酸改良复合树脂组牙质剪切粘结强度无统计学差异,其它任意两组之间均有高度统计学差异。结论:复合树脂与多聚酸改良复合树脂牙质粘结强度无明显差别,均高于玻璃离子和树脂改良玻璃离子,以玻璃离子粘结强度最低。Objective： To compare the bond strength between four tooth--colored restorations and primary teeth. Methods： Eighty retained deciduous molars were randomly divided into eight groups and were respectively prepared into standard bonding specimens using composite resin, polyacid--modified composite resins, glass ionomer cement and rrresin--modified glass ionomer cement. The shear bond strength of the eight groups was examined and the bonding interface rupture mode was observed under stereomicroscope. Results.. The shear bond strength of four tooth--colored restorations in enamel group was significantly higher than that in dentinal group. There was no sta tistical significance of the shear bond strength between composite resin group and polyacid--modified composite res- ins group. There were significantly statistical difference between the other two groups. Conclusion： The shear bond strength of four tooth--colored restorations in enamel group was significantly higher than that in dentinal group. There was no statistical significance of the shear bond strength between composite resin group and polyacid--modi fled composite resins group using the same kind of total-etching adhesive agent. The shear bond strength of the glass ionomer cement group and rresin-modified glass ionomer cement group was lower than that of the other groups and the glass ionomer cement group was the lowest.

关 键 词：复合树脂 多聚酸改良复合树脂 树脂改良玻璃离子 玻璃离子 乳牙 剪切粘结强度 

分 类 号：R783.1[医药卫生—口腔医学]