无缝冠爆破成形法的优点是:1.方法简便,成形速度快(制作过程中只需制取一只石膏阳模即可,省去原锤造法中的许多工序,节省了大量时间和材料);2.成形后无缝冠精密度高,恢复原基牙外形完善,符合临床要求;3.设备简单,价格便宜,便于在广大基层医疗单位中推广。目前尚存在的主要缺点是:对上下切牙成形还不够理想,切角不够明显,尚待进一步改进。现将该法 The advantages of seamless crown blasting method are: 1. The method is simple and the forming speed is fast (only one gypsum male mold can be made during the production process, eliminating many processes in the original hammer making method, saving a lot of time and Material); 2. Seamless crown after forming high precision, restore the original abutment shape perfect, in line with clinical requirements; 3. Equipment is simple, cheap, easy to promote the majority of primary health care units. The main shortcoming that still exists at present is: The forming of the upper and lower incisors is not ideal enough, the chamfer angle is not obvious enough and needs to be further improved. Now the law