义齿蜡型完成后，在装盒冲蜡时，易出现卡环移位，移位小老影响义齿的功能和舒适，移位大者就需返工重新制作，造成很多不便。笔者采用控窝装盒，较好地解决了卡环移位的问题。一、下列牙易出现卡林移位常见的有弧立牙，短冠牙，牙冠形态异常，伸长牙，切牙、盒边牙（指型盒边 When the denture wax is finished, it is easy to appear the snap ring displacement when the wax is filled in the box. The function and comfort of the denture affected by the shift are small. If the displacement is too great, the rework will be required and the inconvenience will be caused. I use control box packing box, a better solution to the problem of displacement ring. First, the following teeth prone to Carlin shift common arc teeth, short crown teeth, crown abnormalities, elongated teeth, incisors, box edge teeth (finger box edge