Autotransplantation of a Mesiodens to Replace Traumatized Mandibular Incisor in a Growing Patient-A Case Report

發育兒童之上顎正中贅生齒自體移植取代外傷脫落之下顎門牙－病例報告

黃筱婷(Hsiao-Ting Huang) ； 林芯宇(Shin-Yu Lin) ； 顏明良(Ming-Liang Yen) ； 蔡恒惠(Hung-Huey Tsai)

《臺灣兒童牙醫學雜誌》 19卷3期 (2019/09) Pp. 125-131

https://doi.org/10.6319/TJPD.201909_19(3).0006

摘要

Dental autotransplantation is defined as the movement of one tooth from one position to another, within the same person. The treatment does not interfere with the orofacial growth, is cost effective and allows for rapid recovery of function and aesthetics. Therefore, tooth autotransplantation could be considered as an alternative to dental implant for missing teeth in growing patient. This report presents an autotransplantation of a mesiodens to traumatic lost mandibular incisors. A 12-year-old boy fell from his bicycle and lost his right permanent mandibular central and lateral incisors (tooth 41, 42). The avulsed mandibular lateral incisor was replaced with his mesiodens and root canal treatment of the mesiodens was initiated at the same time. After stabilization, the crown of the transplant was restored with composite resin and the space of mandibular central incisor was maintained with a removable denture. After 16 months follow-up, the transplant showed good aesthetics and prognosis. The indication, technique and prognosis of autotransplantation are addressed as well.

關鍵字

autotransplantation ； mesiodens ； supernumerary tooth

並列摘要

牙科自體移植之定義為將同一病患的牙齒由一處種植至另一處。自體移植之牙齒不會影響患者口腔顏面的生長發育、花費較低且可快速恢復功能及美觀。因此，生長發育中的患者可考慮以自體移植代替植牙。本文提出一以上顎正中贅生齒移植至外傷脫落的下顎門牙之病例報告。12歲男童由腳踏車上摔落，造成下顎右側正中及側門牙脫落。脫落之下顎門牙處由上顎正中贅生齒取代，並於同次開始此贅生齒之根管治療。待移植牙穩定後以樹脂復型牙冠，並以活動假牙維持剩餘空間。於十六個月追蹤後，移植之多生牙仍具有良好的美觀及預後。本文亦討論牙齒自體移植之適應症、臨床操作及預後。

並列關鍵字

自體移植 ； 正中贅生齒 ； 多生牙