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下顎單側後牙懸臂式固定局部義齒支檯齒十二年牙周長期追蹤:病例報告

Long-term Follow up of the Abutment Teeth of the Unilateral Lower Posterior Cantilever Fixed Partial Denture: A 12-year Case Report

摘要


懸臂式固定局部義齒因為常常發生生物性與技術性的併發症造成失敗,所以常被牙科醫師認為是不良的補綴設計。本文提供一個下顎單側後牙懸臂式固定局部義齒十二年牙周長期追蹤的病例,在觀察的期間發生遠心支檯齒有牙周膜寬度增厚以及齒槽骨下蝕性吸收的情形。在去除懸臂延伸一年半之後,在放射線影像上觀察到已吸收的齒槽骨又恢復到原來正常的情形。

並列摘要


The cantilever fixed partial denture has often been considered as a poor prosthetic design by dentists, because of the frequently happened failure caused by biological and technical complications. We provides a 12-years long-term follow up case of the abutment teeth of the lower unilateral posterior cantilever fixed partial denture. In the observation period, we found periodontal ligament widening and alveolar bone undermining resorption of the distal abutment tooth. After removal of the cantilever extension, the recovery of the alveolar bone has been observed radiographically.

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