Division of Graduate Studies, University of Detroit Mercy School of Dentistry, Detroit, MI, USA; Private practice, MI, USA.
Division of Graduate Studies, University of Detroit Mercy School of Dentistry, Detroit, MI, USA.
Int Orthod. 2022 Jun;20(2):100635. doi: 10.1016/j.ortho.2022.100635. Epub 2022 May 11.
Tooth autotransplantation is a viable surgical treatment option for patients with missing permanent teeth. Premolars are generally used for autotransplantation but often require extensive modifications. This case report evaluates the use of supernumerary tooth as an alternative option for premolar autotransplantation. This report shows successful supernumerary tooth autotransplantation with 6-year follow-up.
A 13-year-old male with non-contributory medical history was referred for a missing maxillary left central incisor (#9) and presence of a supernumerary tooth. The clinical and radiographic examination revealed presence of supernumerary tooth with similar dimensions to a central incisor. The treatment plan included autotransplantation of the supernumerary tooth to replace the missing central incisor (short-term) and future implant replacement of the autotransplanted tooth when jaw growth ceases (long-term). The patient and parents consented to treatment. A 3-D tooth replica was constructed based on CBCT analyses. Site #9 was prepared using split ridge technique to create a socket to house the 3-D replica. Upon achieving proper socket form, the supernumerary tooth was extracted and autotransplanted in the prepared socket. The supernumerary tooth was splinted, and the bite opened posteriorly using composite to eliminate any occlusal interferences.
The patient was followed up clinically and radiographically. The autotransplanted supernumerary tooth integrated well within the newly created socket and remained functional at the 6-year follow-up.
The current case presents successful management of supernumerary tooth autotransplantation with 6-year follow-up. The results show stable periodontium with satisfactory functional and aesthetic results.
牙自体移植是治疗缺失恒牙患者的可行手术治疗选择。前磨牙通常用于自体移植，但往往需要广泛的修改。本病例报告评估了额外牙作为前磨牙自体移植替代方案的应用。本报告展示了成功的额外牙自体移植，并进行了 6 年的随访。
一名无特殊病史的 13 岁男性因上颌左侧侧切牙（#9）缺失和存在额外牙而就诊。临床和影像学检查显示存在与侧切牙尺寸相似的额外牙。治疗计划包括将额外牙自体移植以替代缺失的侧切牙（短期），并在颌骨生长停止后（长期）用种植体替代自体移植牙。患者和家长均同意治疗方案。根据 CBCT 分析构建了 3D 牙复制体。使用分体式牙槽嵴技术预备#9 位点，以创建一个容纳 3D 复制体的牙槽窝。当达到合适的牙槽窝形态后，拔出额外牙并将其自体移植到预备好的牙槽窝中。用夹板固定额外牙，并使用复合树脂打开后牙咬合以消除任何咬合干扰。
患者接受了临床和影像学随访。自体移植的额外牙在新形成的牙槽窝内良好融合，并在 6 年随访时仍保持功能。
本病例成功管理了额外牙自体移植，并进行了 6 年的随访。结果显示牙周组织稳定，具有令人满意的功能和美学效果。
