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长期以来,制作义齿基托所用的各种材料都存在着不同的缺点。虽经过多方改进,也未能达到较理想的要求。但自光固化技术和材料成功地应用于牙体修复以后,牙列修复及矫治器的制作才有了新的进展。1986年美国布发罗牙学院Ogle R E等首先发表了应用TRIAD I系列光固化机与材料的研究报告、日本大学牙学院石上惠一等连续报告VLC(可见啊光固化)树脂制作义齿基托的基础研究,他们一致认为用VLC树脂修复具有工序简单、操作方便、无刺激性、疗程短等优点。我国失牙患者众多,义齿修复材料供不应求,急需引进新技术、研制新材料来改变目前的落后状况。1989年初天津市制出国产光固机,但成本较高,且VLC树脂要从美
For a long time, various materials used in making dentures have different shortcomings. After many improvements, it failed to meet the more satisfactory requirements. However, since the light-curing technology and materials successfully applied to the restoration of the dentition, orthodontic and appliance production has made new progress. In 1986, the American College of Gynecology and Obstetrics published the research report of TRIAD I series of light curing machines and materials first, Ogle RE of the University of the American College of Blubs, etc., and the report of VLC (visible light curing) resin denture base Basic research, they agreed that the use of VLC resin repair process has the advantages of easy, non-irritating, short treatment and so on. There are many teeth-loss patients in our country, denture repair materials in short supply, the urgent need to introduce new technologies, research and development of new materials to change the current backward conditions. In early 1989, Tianjin made a domestic light curing machine, but the cost is higher, and VLC resin should be from the United States