牙科用鑄造Ti-20Cr及Ti-20Cr-1X合金之結構及性質研究

Structure and Properties of Cast Ti-20Cr and Ti-20Cr-1X Alloys for Dental Applications

何文福(Wen-Fu Ho) ； 潘昌宏(Chang-Hung Pan) ； 許學全(Hsueh-Chuan Hsu) ； 吳世經(Shih-Ching Wu)

《科學與工程技術期刊》 4卷1期 (2008/03) Pp. 67-72

https://doi.org/10.7117/JSET.200803.0067

摘要

因具有質輕、高強度、低密度之優良機械性質，且其生物相容性及抗腐蝕性均佳，鈦及鈦合金目前已廣泛使用在骨科、外科及牙科應用上。在牙科方面如純鈦及Ti-6Al-4V合金可被使用在牙冠、牙橋、牙床、植體等。從生物相容性的觀點來看，Ti-6Al-4V合金由於其Al及V離子釋出可能產生細胞毒性與其他潛在的問題，普遍認爲並不是作爲生醫用鈦合金的最佳選擇。因此，最近許多不同成分的新型生醫用鈦合金被積極開發，希望能製作具有不錯的性質，特別是擁有優良的生物相容性。在本研究中，將探討Ti-20Cr及Ti-20Cr-1X（X=Nb，Mo，Zr或Fe）之相及晶體構造、微結構及機械性質，並與商業用純鈦做比較，期望能開發出適合作爲牙科應用之鈦合金。

關鍵字

鈦合金 ； 牙科合金 ； 微結構 ； 機械性質

並列摘要

Because of their low density, excellent biocompatibility, corrosion resistance and mechanical properties, pure titanium and titanium alloys have recently become quite attractive metallic biomaterials. Pure titanium and Ti-6Al-4V ELI are used as crowns, bridges, plates, and endosseous dental implants for oral maxillofacial surgery. From a biocompatibility perspective, Ti-6Al-4V ELI is not a good choice due to the toxicity of its released Al and V ions. Many attempts have been made to develop titanium alloys of different compositions to achieve better biocompatibility performance. In this research, the structure and properties of Ti-20Cr and a Ti-20Cr-1X (X=Nb, Mo, Cr or Fe) alloy are examined for comparison with commercially pure titanium (c. p. Ti), obtained by using a dental casting unit.

並列關鍵字

Ti alloy ； biomaterials ； structure ； mechanical property