4种复合树脂充填Ⅱ类窝洞边缘微渗漏研究  

Comparison of marginal microleakage of class Ⅱ restoration with four composite resins

作　　者：史婷[1] 刘进[1] 

机构地区：[1]郑州大学第一附属医院口腔医学中心,河南郑州450000

出　　处：《河南医学研究》2016年第11期1932-1934,共3页Henan Medical Research

摘　　要：目的比较4种不同类型复合树脂充填Ⅱ类窝洞后的边缘微渗漏情况。方法选择30颗无龋的磨牙,每个牙齿的4个轴面制备Ⅱ类洞型,并分别充填Filtek Z350流动树脂、Filtek Z350树脂、SDR流动树脂、Tetric N-Ceram Bulk Fill树脂。所有充填过的样本镜温度循环500次后,浸入品红溶液中24 h,体式显微镜观察并对各组微渗漏进行评价。结果 SDR的微渗漏值最小,Z350流动树脂、Tetric N-Ceram Bulk Fill和Z350树脂3种树脂的微渗漏值依次增大,组间差异有统计学意义(P<0.05)。结论相较于其他树脂,SDR复合树脂充填后的窝洞边缘微渗漏较少。Objective To compare marginal microleakage of class II restoration with four composite resins under in vitro conditions. Methods 30 molars without caries were selected. In each tooth, 4 cavities of class Ⅱ were prepared and filled with 4 composite resins ： Filtek Z350 Flowable, Fihek Z350, SDR and TetricN - Ceram Bulk Fill. All filled teeth were thermocycled for 500 times and were then immersed in basic fuchsine solusion for 24 h. The depth of methylene penetration was measured under stereomicroscope. Results Marginal microleakage value of SDR was smallest, followed by Fihek Z350 Flowable, TetricN - Ceram Bulk Fill, Filtek Z350, and the differences were statistically significant （P 〈 0. 05 ）. Conclusion Compared with the other composites, SDR showed significantly less marginal microleakage.

关 键 词：复合树脂 大体积充填 微渗漏 

分 类 号：R783[医药卫生—口腔医学]