Optimalization Surface Treatment Processing Applied on Dental Implants

[[abstract]]本計畫擬開發之目標載具為人工牙根，主要是要建立應用於人工牙根所需的表面處理 技術，包括耐蝕處理技術與表面粗化處理。研究分為兩部分：第一部分主要探討鈦合金電 解拋光製程條件對表面粗糙度的影響。此部份針對加工後的牙根內螺紋與外表面非螺紋部 份進行局部電解拋光處理，並利用田口實驗計劃法進行製程條件之最佳化。預期在最佳化 製程條件下可以使表面粗糙度下降至0.05μm 以下。電解拋光後再進行陽極氧化處理增強 其表面耐蝕性。第二部分針對牙根外螺紋進行噴砂與酸蝕處理使其表面粗化並進行製程條 件最佳化。此部分主要探討鈦合金經噴砂+酸蝕處理對表面粗糙度之影響，並與機械加工、 噴砂及酸蝕處理作比較。預期在噴砂+酸蝕處理最佳化製程條件下可以使表面粗糙度上升 至2.5μm 以上，使骨組織易於生長提高結合力。經噴砂+酸蝕處理的表面型態及親疏水性 也一併討論。[[abstract]]The aim of this study is to develop the surface treatment technologies which are applied on dental implants. This research involve two items :(1)investigation of the effects of electro-polishing parameters on surface roughness. In this study, Taguchi method is used to optimize the process parameters. At the optimization process parameters, the surface roughness is expected to reduce to below 0.05μm. After electro-polishing the internal screw is anodized to improve corrosion resistance. (2)Study of the effects of blasting combine with acid etching parameters on surface roughness applied on outer screw of implant. These results are also compared with those of machined or blasting or etching parts. By combining blasting with acid-etching treatment, measure of surface roughness is expected up to 2.5μm. The surface morphology and wettability are also observed and discussed in this study.[[note]]NSC99-2622-E327-005-CC