Kitahara Toru, Nakasima Akihiko, Shiratsuchi Yuji
Kyushu University, Kyushu, Japan.
Angle Orthod. 2009 Mar;79(2):401-6. doi: 10.2319/022008-103.1.
This article presents orthognathic treatment in successful collaboration with autotransplantation of the maxillary third molar. The case report describes a 24-year-old man with severe mandibular protrusion and severe crowding in both dentitions. Overbite was 0 mm, overjet, -15 mm. Maxillary second molars and mandibular third molars were extracted, and presurgical multibracket treatment was begun. Maxillary third molars were impacted completely at 18 months in terms of presurgical tooth alignment. Autotransplantation of the teeth was achieved to substitute for extracted maxillary second molars. At 6 months after autotransplantation, the maxilla was advanced 4 mm on both sides through a Le Fort I procedure; left and right sides of the mandible were set back 15 and 18 mm, respectively, via sagittal split ramus osteotomy to improve mandibular protrusion. The total treatment period lasted 37 months. Autotransplantation treatment is an effective modality for tooth replacement when a donor tooth is available. Fully impacted maxillary third molars are potentially reliable candidates for autotransplantation.
本文介绍了与上颌第三磨牙自体移植成功协作的正颌治疗。该病例报告描述了一名24岁男性，患有严重的下颌前突和双侧牙列严重拥挤。覆合为0毫米，覆盖为-15毫米。拔除上颌第二磨牙和下颌第三磨牙，并开始术前多托槽治疗。就术前牙齿排齐而言，上颌第三磨牙在18个月时完全萌出。实现了牙齿的自体移植以替代拔除的上颌第二磨牙。自体移植6个月后，通过Le Fort I手术将上颌两侧各前移4毫米；通过矢状劈开下颌支截骨术将下颌左右两侧分别后推15毫米和18毫米，以改善下颌前突。总治疗期持续37个月。当有供体牙可用时，自体移植治疗是一种有效的牙齿替代方式。完全萌出的上颌第三磨牙可能是自体移植的可靠候选者。
