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Dental Implant Placement in the Edentulous Area with Idiopathic Osteosclerosis-Two Case Reports and Literature Review

植牙於特發性骨硬化的臨床考量-病例報告及文獻回顧

摘要


Studies have not focused on idiopathic osteosclerosis (IO) because the lesion may cause negative effects on vascular circulation, bone healing and consequently influences the outcomes of implant stability. The purpose of this article is to investigate the results of implant stability in IO clinically after the lesion was surgically removed with staged implant surgery or implant placement directly in IO. In case 1, a 54 -year-old Asian female asked for implant placement in edentulous area of 46 47 for reconstruction. IO was found at 47 region and removed for further implant surgery. Five months later, computed tomographic images at 47 site revealed a higher bone density suitable for implant placement, and both implants were found stable clinically and radiographically 6 month later. In case2, a 50-year-old male carne for implant placement in the 34 35 36 and 44 areas. One implant was directly placed in IO at the 44 region, and other three implants were placed without IO involvement. Based on clinical examination and radiographic findings, both implants and peri-implant tissue were stable. To conclude, in order to obtain implant stability with IO lesions, meticulous diagnosis and treatment planning, either direct implant placement in IO or IO removal should be considered before surgery.

並列摘要


特發性骨硬化為一具局部放射線不透性之骨質構造,確切成因不明。根據過去的相關文獻,對於植牙患者而言此構造將可能對骨組織血液供應、骨癒合甚至對植體置入之穩定度和臨床結果有負面的影響。文中利用兩個臨床病例,探討將植體置入具有特發性骨硬化的無牙脊區使用不同手術方法之臨床結果。分別使用直接置入和將特發性骨硬化移除後等待癒合後再植入兩種方法,在不同病患及不同牙位均有良好且穩定之臨床結果。綜合兩病例之觀察,在具有特發性骨硬化的無牙脊區植牙並非絕對禁忌,為達到理想的臨床結果,謹慎的術前評估和計劃、手術考量及足夠的癒合時間是必要的。

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