在扫描电镜下观察了GD复合树脂与牙齿的粘结及密合度。结果表明GD复合树脂能渗入经酸处理的牙釉质孔隙内形成树脂垂下物,产生了有效的物理性粘结:粘结剂对增强复合树脂与牙齿的粘结及密合度有重要的作用;GD复合树脂与洞壁牙本质的密合度明显不加与牙釉质的密合度;GD复合树脂与其他可见光固化复合树脂在粘结及密合度方面无明显差异。 Under the scanning electron microscope, the adhesion and adhesion of GD composite resin to the teeth were observed. The results show that GD composite resin can penetrate into the acid-treated enamel pores to form resin hangings, resulting in effective physical bonding: the adhesive plays an important role in enhancing the bonding and adhesion between the composite resin and the teeth; GD There was no significant difference between the composite resin and dentin on the dentin surface and the close adhesion between the composite resin and the enamel. The adhesion and adhesion between GD compound resin and other visible light cured composites were not significantly different.