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本文总结自1986～1987年临床完成的光固化冠桥复合树脂修复体200余例,经过3年临床观察,复查74例,修复体93件,其中20件树脂牙面脱落或折断,失败率为21.5％。金属与树脂的结合方式,48件采用金属珠机械固位,45件采用硅喷涂化学结合。从失败率分析,机械固位优于硅喷涂技术,而且机械固位的方式,不需要特殊的设备,操作简单、省时,但金属与树脂界面的结合力尚不够理想。光固化冠桥复合树脂,对底金属无选择性,聚合作用由光敏固化装置引发,不受操作时间的限制,可任意堆塑、雕刻,操作方法简单、方便,容易掌握,价格较金属烤瓷低廉,便于推广,临床上有一定的实用意义。失败率较高,强度、耐磨性,色泽均不如金属烤瓷修复体,有待进一步研究。同时对修复体设计的形式及操作方法作简单介绍。
In this paper, more than 200 cases of light-cured crown-bridge composite resin restoration completed from 1986 to 1987 were reviewed. After 3 years of clinical observation, 74 cases were reconstructed and 93 prostheses were restored. Twenty resinous teeth were dropped off or broken, the failure rate was 21.5%. The combination of metal and resin, 48 metal bead mechanical retention, 45 using silicon spray chemical combination. From the failure rate analysis, mechanical retention superior to the silicon spraying technology, and mechanical retention of the way, does not require special equipment, simple operation, saving time, but the metal and resin interface bonding force is not yet ideal. Light-curing crown bridge composite resin, no selectivity to the bottom metal, polymerization initiated by the photosensitive curing device, not subject to operating time constraints, can be any plastic, sculpture, the operation method is simple, convenient, easy to grasp, the price is lower than the metal porcelain Low, easy to promote, clinically have some practical significance. Failure rate is higher, strength, wear resistance, color are not as good as metal porcelain restoration, pending further study. At the same time, the design of prosthesis and the operation method for a brief introduction.