Keywords Crowns;Dental restoration;permanent;Dental adhesion;Adhesive resin luting system;Polyacid modified self adhesive compomer luting cement;Zinc phosphate cement;Marginal microleakage;

• 关键词牙冠;牙修复;永久;牙粘结;树脂粘结系统;多聚酸改性树脂粘结剂;磷酸锌粘固剂;边缘微渗漏;