随着粘接材料和技术的发展,复合树脂修复技术有了越来越广泛的应用。然而,复合树脂材料固化时发生聚合收缩,随之而来的应力变化可能会在修复体与牙体组织之间产生裂隙,从而影响修复体的密合性。为观察修复体与牙体组织之间的密合性,多采用显微镜观察法,包括使用光学显微镜(light microscope,LM)、扫描电子显微镜(scanning electron microscope,SEM)~([1,2])、透射电镜 With the development of adhesive materials and technology, composite resin repair technology has been more and more widely used. However, when the composite resin material is cured, shrinkage of the polymer occurs, and the consequent change in stress may cause a crack between the restoration and the dental tissue, thereby affecting the adhesion of the restoration. In order to observe the adhesion between the restoration and the dental tissue, a microscopic observation is often used, which includes observation using a light microscope (LM), a scanning electron microscope (SEM) , Transmission electron microscopy