SonicFill声波树脂直接和间接法修复后牙Ⅱ类洞的微渗漏表现  

Microleakage Performance of SonicFill in Direct and Indirect Restoration of ClassⅡCavities in Posterior Teeth

作　　者：朱运握 何万志 ZHU Yunwo;HE Wanzhi(State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&Department of Geriatric Dentistry,West China Hospital of Stomatology,Sichuan University,Chengdu 610041,China)

机构地区：[1]四川大学华西口腔医院老年口腔科,四川成都610041

出　　处：《口腔医学研究》2021年第8期732-736,共5页Journal of Oral Science Research

基　　金：四川省干部保健科研课题(编号:川干研2018-091)。

摘　　要：目的:探讨SonicFill声波树脂通过直接充填技术或树脂嵌体技术修复人离体后牙的Ⅱ类洞,比较两种修复方法边缘微渗漏的差异。方法:收集50颗人离体前磨牙制备标准的Ⅱ类洞型腔,随机分成两组,每组25颗。A组使用SonicFill声波树脂直接充填修复,B组使用SonicFill声波树脂制作树脂嵌体进行修复。通过温度循环后每组随机选取5个样本进行扫描电镜观察,剩余样本用品红染色后在体式显微镜下观察牙合缘和龈缘的染色情况,测量染料渗透深度并分级。结果:扫描电镜下观察到两组修复体与牙体组织均结合良好,但均观察到少量间隙的出现,A组的间隙范围要大于B组;在牙合缘处,B组染料渗透深度低于A组(P<0.05);而在龈缘处两组间染色深度比较差异无统计学意义(P>0.05)。结论:本研究结果表明,使用SonicFill声波树脂进行间接法修复比直接充填法获得较好的微渗漏表现。Objective:To compare the marginal microleakage of SonicFill between direct and indirect restoration of classⅡcavities in posterior teeth.Methods:50 human premolars were randomly divided into two groups with 25 teeth in each group.Group A was directly filled with SonicFill,and Group B was restored with SonicFill inlay.After thermocycling,5 samples were randomly selected from each group for scanning electron microscope,and the remaining samples were stained with magenta and observed the staining of the occlusal and gingival margins under a stereomicroscope,and the penetration depth of the dye was measured and graded.Results:Under the scanning electron microscope,it was found that the restorations of two groups were well integrated with the tooth tissue,and little gaps were observed in both groups.The amount of gaps in group A was larger than that of group B.The dye penetration depth of group B was lower than that of group A(P<0.05)at the gingival margin,but there was no significant difference between the two groups(P>0.05)at the occlusal margin.Conclusion:SonicFill inlay is better than direct SonicFill restoration in the performance of microleakage.

关 键 词：树脂嵌体 声波树脂 间接修复 微渗漏 

分 类 号：R783.1[医药卫生—口腔医学]