本研究之結果顯示，具水平平台介面之植體其周邊骨吸收量在支 柱接出第一年內似乎和不具水平平台介面的植體表現相同。隨著使用 時間增加，超過第一年後具水平平台介面之植體的骨吸收量似乎較控 制組來得少，至第 36 個月時達到統計上有明顯差異的程度；惟超過 第 48 個月時，控制組的骨高度突然上升，導致趨勢改變。同時比較 兩組在植體接出第一年後的年平均骨吸收量，兩者亦無顯著差異，因 此無法對水平平台介面在晚期骨吸收的影響下達肯定結論。
由於本研究並非在第二階段手術植體接出時馬上轉換成水平平 台介面，可能因此減弱水平平台介面對早期骨吸收的影響。然而 PS 組似乎在接出第一年後的骨高度表現較佳則是意外的發現，促使我們 注意水平平台介面是否也有利於減少植體周邊的晚期骨吸收。因此，
提早轉換水平平台介面的時間點、延長追蹤年限、以及增加樣本數為 未來相關研究的方向。
關於植體周邊骨變化的議題方興未艾，除了長期成功率的考量 外，穩定的植體周邊軟、硬組織更與贋復物美觀的維持息息相關。水 平平台介面是兩段式植體克服早期骨吸收現象的一線曙光，若其效果 屬實，不僅在臨床上對植體支持贋復物的表現大有幫助，學理上則對 植體周邊骨質的生理學有更深的認識。因此，進一步以前瞻式隨機臨 床試驗(prospective randomized clinical trial)來釐清水平平台介面的效 應實屬必要。
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作者簡歷
姓名：楊明穎 Ming-Ying, Yang 性別：女
生日：1976 年 12 月 3 日
學歷：中國醫藥大學醫學研究所臨床牙醫學組 (2005.9~2007.6) 國立台灣大學牙醫學系第 41 屆 (1995.9~2001.6)
經歷：中國醫藥大學附設醫院牙醫部贋復科代訓醫師 (2003.7~2005.6)
台灣大學附設醫院牙科部住院醫師 (2001.7~2003.6)