关键词: 复合树脂, 后牙, 聚合收缩, 耐磨损性

Abstract: Posterior composite resin is used to restore cavities involving stress bearing areas and is required to show high compressive strength，flexure strength， fracture toughness and wear resistance. With the development of composite resin，the laboratory properties and clinical effectiveness of posterior composite resin have been improved significantly. This article reviewed concisely the clinical effectiveness of modern posterior composite resin and the state of arts of some low shrinkage and wear resistance composite resins.

Key words: composite resin, posterior teeth, polymerization shrinkage, wear resistance