高濃度酸エッチングによるチタンの表面改質 -アルカリ処理に与える影響-

河野 博史; 佐藤 秀夫; 湯田 昭彦; 岩谷 由香梨; 伴 清治

doi:10.14832/gsjsdmd.2004f.0.56.0

44th General Session of the Japanese Society for Dental Materials and Devices

Session ID : P-10

DOI https://doi.org/10.14832/gsjsdmd.2004f.0.56.0

Conference information

Host: The Japanese Association for Dental Materials and Devices

Surface modification of titanium by etching in concentrated acid

-Effect on alkaline treatment-

*Hiroshi Kono, Hideo Sato, Akihiko Yuda, Yukari Iwaya, Seiji Ban

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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

It was found that the surface of titanium became porous and titanium hydride was formed after the surface treatment of titanium by etching in 48% sulfuric acid. After the treatment in 5M-NaOH, the amount of sodium titanate on the acid-etched surface was larger than that on untreated titanium. However, titanium hydride still existed after soaking in simulated body fluid for 3 weeks. Titanium hydride disappeared and titanium oxide was formed after vacuum firing.

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