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Maxillary Anterior Implants Replacement Following Ridge Augmentation Using a Xenogenous Bone Block at a Previously Failed Site: A Case Report

應用異體移植骨塊之骨再生術及植體重置於植體失敗之上顎前牙區的病例報告

摘要


牙科植牙是在缺牙區重建的治療選擇之一,然而,一旦發生植體失敗,如何去治療這樣的植體,將造成醫生棘手的問題,尤其是發生在上顎前牙美觀區域。本文提出一位58歲患者左上門齒區植牙失敗後,經過移除植體,使用異體移植骨塊及可吸收再生膜之骨再生手術重建骨質後,在十一個月後重新成功植牙及膺復的病例。透過這個病例顯示,植體周圍炎導致的嚴重骨缺損,可透過使用異體骨骨塊之骨再生手術治療及植體重置,得到成功的治療效果

並列摘要


Dental implant therapy has become a predictable treatment option for the oral reconstruction of missing teeth. However, implant failure may occur and the failed implant site presents a therapeutic challenge to the clinician, especially in the maxillary esthetic region. This article describes the successful implant retreatment of a 58-year-old male who suffered from a failed implant in the maxillary incisor area. The failed implant was removed and guided bone regeneration (GBR) surgery was performed using a xenogenous bone block and a particulate bone graft, which were then covered with an absorbable membrane. Two implants were placed on the augmented ridge eleven months after GBR surgery and the final fixed prostheses were delivered later. This case report demonstrates a successful approach to implant replacement when there is a compromised ridge following GBR that uses a xenogenous bone block.

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