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目的:探讨上颌侧切牙与尖牙不完全易位的早期矫治方法。方法:替牙期上颌侧切牙与尖牙不完全易位病例8例,采用“2×4”矫治技术,切开翻瓣术,辅弓牵引尖牙、侧切牙复位。结果:8例上颌侧切牙与尖牙不完全易位者经过8～12个月的治疗,易位的上颌尖牙与侧切牙排列到正常位置。结论:上颌尖牙与侧切牙不完全易位,应早期矫治,以避免上颌侧切牙牙根吸收及完全易位的发生,矫治中的关键是减少尖牙与侧切牙间的移动阻力。
Objective: To explore the early treatment method of incomplete translocation of maxillary lateral canine and canine. Methods: 8 cases of maxillary lateral canine and canine incomplete permutation were treated by “2 × 4” orthodontic treatment. Open flap surgery, secondary canine traction canine and lateral incisor reduction were performed. Results: 8 cases of maxillary lateral canine and canine incomplete transposition after 8 to 12 months of treatment, transposition of the maxillary canine and lateral incisors arranged to the normal position. Conclusion: The maxillary canine and lateral incisor are not completely translocated and should be treated early to avoid the root resorption and complete translocation of the maxillary incisor. The key point in the orthodontic treatment is to reduce the resistance to movement between the canine and the lateral incisor.