Angle Orthod. 2020 Nov 1;90(6):873-880. doi: 10.2319/121719-808.1.
Transposition of maxillary teeth is an eruptive disturbance occurring in approximately 1 of every 300 orthodontic patients. Such cases are frequently very challenging in terms of treatment planning and orthodontic management. The canine is one of the most commonly transposed teeth, ectopically positioned with either the lateral incisor or the first premolar. This case report illustrates unique orthodontic treatment, describes treatment procedures, and presents the final outcome of bilateral maxillary canine-lateral incisor complete transpositions in which the involved teeth were moved to their clinically normal position in the dental arch without extracting premolars.
上颌牙齿错位是一种萌出障碍，大约每 300 名正畸患者中就会发生 1 例。此类病例在治疗计划和正畸管理方面通常极具挑战性。尖牙是最常发生错位的牙齿之一，异位萌出于侧切牙或第一前磨牙。本病例报告说明了独特的正畸治疗，描述了治疗程序，并展示了双侧上颌尖牙-侧切牙完全错位的最终结果，其中受累牙齿在不拔出前磨牙的情况下移动到牙弓的临床正常位置。
