1引言口腔材料的发展水平与口腔健康水平一样,它体现了一个社会的现代化程度。而口腔材料学的水平取决于整个材料科学的发展水平。在临床医学中,治疗疾病主要依靠药物;在口腔医学里,临床修复与治疗主要依靠材料,材料的质量高低很大程度上决定了口腔修复的质量,材料对口腔临床修 1 Introduction Oral material development level and oral health level, it reflects the degree of social modernization. The level of oral materials science depends on the level of development of the entire material science. In clinical medicine, the treatment of diseases rely mainly on drugs; in stomatology, clinical repair and treatment rely mainly on the material, the quality of the material largely determines the quality of oral repair, the clinical material repair