口腔陶瓷修复材料加工研究

摘要

口腔陶瓷修复材料以其优良的生物相容性、独特的美学性及稳定的化学性等优点在口腔修复中占主导地位.由于口腔陶瓷修复材料的脆硬特性及义齿的复杂表面特征,使其在CAD/CAM(计算机辅助设计与制造)成型加工和后续的修磨中,存在磨削工艺复杂、加工破损率高和表面易损伤等难题.充分了解口腔修复材料专用磨削加工工具及其性能,优化设计加工参数,对降低修复材料损伤具有重要意义.本文介绍了不同口腔陶瓷修复材料加工方式和加工工具,阐述了口腔陶瓷修复材料的磨削去除机理、磨削力及磨削表面质量等研究现状,并提出了后期研究发展主要方向.%Dental ceramic restorative materials take a dominant place due to the advantages such as excellent biocompatibility,unique aesthetic and stable chemical properties.However,complex surface characteristics and hard-brittle properties of dental ceramic restorative materials caused difficulties in the computer aided design/computer aided making (CAD/CAM) processing and subsequent grinding,such as complicated craft,high failure rate and surface damage of dental ceramics.Thus,it is of great importance for reducing material damage to fully understand the special grinding tools and their performance and to optimize the parameters.Methods and tools of denture processing are introduced,as well as the removal mechanism,grinding force and grinding surface quality of dental ceramic restorative materials.In the end,main directions for further developing are put forward.