Treatment procedures included surgical exposure of the high positioned canine, followed by bonding with a lingual button, and orthodontic traction the impacted canine to the proper position.

• 治疗时先以开窗手术露出此高位的犬齿牙冠后，黏上钮扣然后施予轻微的矫正力量牵引阻生犬齿至正常的位置。