316L型的不鏽鋼合金常被當作為醫療器材的金屬材料，由於它具耐腐蝕性和低磨擦的特性，更被廣泛的應用在齒顎矯正技術上；而利用電化學拋光方法可以無損於表面生物相容性的情況下，來提升材料較佳的抗腐蝕性以及較好的工作特性。因此，本研究以電化學拋光的製程為主，並在拋光液中添加適當的界面活性劑，以增加在拋光製程材料表面的濕潤效果，藉以提升整體拋光的效率。在本系統中，經由光學顯微鏡的表面型態觀察與AFM測量的表面RMS粗糙度值比較發現，添加界面活性劑於電化學拋光液中，在相同的拋光時間下，會有較好的拋光效果；其中，添加5 ppm Tergitol 15-S-9的濃度時，表面有很好的平整性和最低的表面粗糙度。然而，過濃或過稀的添加量反而會使得表面粗糙度增加。利用XPS分析經電化學拋光後的不鏽鋼片表面，發現表面的鐵、鉻含量降低一些，且出現少許的磷與鈉的含量，其中可能含有磷酸鈉與碳酸鈉等化合物，對細胞的生長不太具有影響的。在纖維細胞增生實驗的結果中，經過拋光處理的不鏽鋼表面仍具有生物相容性；而拋光後的試片由於表面粗糙度降低，使得細胞貼附的情形稍微較差於拋光前的不鏽鋼片。

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