焊接开面冠常用手工锤制而成。常用方法有:唇、舌对半焊接法,颈环翻折焊接法及焊接轴圈法等。按常规操作工序多,所制冠颈环贴合差,常有悬突。自1982年来,我科采用印模胶阴模压榨成形法,制作前牙焊接 Welded crown commonly used manual hammer system. Common methods are: lip, tongue on the half welding method, the neck ring and other welding method of folding flange method. According to conventional operating procedures and more, the system crown ring poor fit, often hanging over. Since 1982, our department has adopted the die-casting rubber die forming method to make anterior teeth welding