各种复合树脂的相对耐磨性,有理由认为它可以替代银汞合金,用作承受应力的修复体。为达到此目的,过去十年中对复合树脂的配方的改进作了巨大努力。和临床有关却很少为人注意的另一特性是消除和减少聚合收缩。聚合收缩会产生边缘间隙。现有的各种使复合树脂或玻璃离聚体(GIC)和牙面粘结的方法中, The relative wear resistance of a variety of composite resins, there is reason to believe that it can replace the amalgam, used as a stress-resistant restoration. To this end, great efforts have been made over the past decade to improve the formulation of composite resins. Another feature that is clinically relevant but rarely noticed is the elimination and reduction of systolic. Polymerization shrinkage will produce edge clearance. Among the various existing methods of bonding a composite resin or glass ionomer (GIC) to a tooth surface,