我们研究了含Si_3N_4——多元醇丙烯酸酯这种功能高分子材料,它是无毒的,并具有生物活性,活的组织与它们能产生界面间的结合,其抗压强度可达3800kgf/cm~2、硬度高达135(布氏),优于国外Adaptic、composite,等同类品种。通过急毒性试验、溶血试验、热原试验、抑菌试验,已证明该材料对人体完全无毒、无溶血性、不含热原物质,其牙髓反应较 We have studied Si_3N_4 - polyol acrylate functional polymer material, which is non-toxic, and has biological activity, living tissue and they can produce the interface between the combination of its compressive strength up to 3800kgf / cm ~ 2, hardness up to 135 (Brinell), better than abroad Adaptic, composite, and other similar species. Through the acute toxicity test, hemolysis test, pyrogen test, bacteriostasis test, it has been proved that the material is completely non-toxic to the human body, hemolytic, pyrogen-free, and its pulp reaction is more