In vitro evaluation of H2O2 hydrothermal treatment of aged titanium surface to enhance biofunctional activity.
Surface modification of titanium has been extensively investigated in implant science and technology in an effort to improve its osteoconductivity. The rate of protein adsorption on titanium surfaces is known to vary depending on the chemistry, structure, morphology, and titanium-specific biological aging of the surface. It is thus desirable to modify smooth titanium surfaces of miniimplants used as orthodontic anchors immediately prior to use. In this study, we have developed a simple surface modification of titanium alloy that improves its biofunctional activity. The surface of a Ti-6Al-4V disk was modified by applying 3% H(2)O(2) hydrothermal treatment using an autoclave. A nanostructured porous network TiO(2) was observed on the treated surface. Treated surfaces exhibited higher hydrophilicity, protein adsorption, and cell proliferation than untreated surfaces. 3% H(2)O(2) hydrothermal treatment is thought to provide biofunctional activity for aged titanium surface.
Department of Oral and Maxillofacial Surgery, The Nippon Dental University School of Life Dentistry at Tokyo, Tokyo, Japan.
Yuya
Y
Yoneyama
Tomonori
T
Matsuno
Yoshiya
Y
Hashimoto
Tazuko
T
Satoh
D016475:3T3 Cells; D000818:Animals; D001672:Biocompatible Materials / Q000737:chemistry; D002448:Cell Adhesion / Q000187:drug effects*; D018929:Cell Culture Techniques; D049109:Cell Proliferation / Q000187:drug effects*; D003722:Dental Alloys / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000494:pharmacology*; D008422:Materials Testing; D051379:Mice; D008855:Microscopy, Electron, Scanning; D010006:Osteoblasts / Q000166:cytology / Q000187:drug effects* / Q000378:metabolism; D056951:Photoelectron Spectroscopy; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
D001672:Biocompatible Materials; D003722:Dental Alloys; D006861:Hydrogen Peroxide; D014025:Titanium