[摘要]目的 比较SDR树脂直接充填与Ceramage聚合瓷嵌体间接修复楔状缺损微渗漏的效果。方法 搜集50个离体下颌第一前磨牙，建立楔状缺损模型，随机分成A组(25个)与B组(25个)。A组进行SDR树脂直接充填，B组采用Ceramage聚合瓷嵌体间接修复，样本经浸泡疲劳和冷热循环老化后，采用染色渗入法，在体视显微镜下测量染料沿修复体与牙体侧壁与龈侧壁间渗入的深度，比较两组修复体的微渗漏程度。结果 两组材料的牙体-修复体界面的侧壁与龈侧壁间均出现微渗漏;A组的侧壁的边缘微渗漏小于龈侧壁，差异有统计学意义(P<0.05);B组的侧壁的边缘微渗漏与龈侧壁比较，差异无统计学意义(P>0.05);B组的侧壁及龈侧壁间的微渗漏深度均小于A组，差异有统计学意义(P<0.05)。結论 Ceramage聚合瓷嵌体修复楔状缺损的边缘封闭性优于SDR树脂直接充填。

    [关键词]SDR树脂;Ceramage聚合瓷;楔状缺损;微渗漏

    [中图分类号] R783.3 [文献标识码] A [文章编号] 1674-4721(2020)9(c)-0112-04

    [Abstract] Objective To compare the effect between direct filling with SDR resin inlay and indirect repair of Ceramage polymerization ceramic inlay on microleakage of wedge-shaped defects. Methods A total of 50 mandibular first premolars were collected to establish wedge-shaped defect model group ......