Saga Ekimae Orthodontics.
Ohtani Dental ＆ Orthodontics.
Bull Tokyo Dent Coll. 2024 Mar 7;65(1):19-27. doi: 10.2209/tdcpublication.2023-0017. Epub 2024 Feb 15.
This case report describes a 19-year-old woman with skeletal Class I crowding and an unsalvageable maxillary right central incisor. She visited our clinic with the chief complaint of mobility of the maxillary right central incisor due to a traffic accident. After extraction of the maxillary right central incisor, the space was closed orthodontically. All the maxillary right teeth were moved mesially with an elastic chain attached to a palatal lever arm which was connected to palatal temporary anchorage devices (TADs). After orthodontic treatment had been completed, the maxillary right lateral incisor and peg-shaped left lateral incisor were restored with a porcelain laminate veneer. The maxillary right canine was morphologically reshaped and built up with composite resin. Consequently, esthetically ideal occlusion and functional lateral guidance with uncontacted molars were obtained. These results show that mesial movement of the entire dental arch with TADs is a useful orthodontic treatment option in patients in whom the maxillary central incisor has been extracted.
本病例报告描述了一位 19 岁的女性，存在骨骼 I 类拥挤和不可挽救的上颌右侧中切牙。她因交通事故导致上颌右侧中切牙松动而前来我院就诊。上颌右侧中切牙拔除后，通过正畸关闭间隙。所有上颌右侧牙齿通过弹性链与腭杆相连，腭杆连接到腭部临时种植体支抗（TAD）上，实现近中移动。正畸治疗完成后，上颌右侧侧切牙和钉形左侧侧切牙用瓷贴面修复。上颌右侧尖牙通过复合树脂进行形态重塑和修复。因此，获得了美观理想的咬合和无接触磨牙的功能侧方引导。这些结果表明，TAD 引导的整个牙弓的近中移动是一种有用的正畸治疗选择，适用于已拔除上颌中切牙的患者。
