Bonding of chemically treated titanium implants to bone

✍ Scribed by Yan, Wei-Qi ;Nakamura, Takashi ;Kobayashi, Masahiko ;Kim, Hyun-Min ;Miyaji, Fumiaki ;Kokubo, Tadashi

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 569 KB
• Volume: 37
• Category: Article
• ISSN: 0021-9304
• DOI: 10.1002/(sici)1097-4636(199711)37:2<267::aid-jbm17>3.0.co;2-b

✦ Synopsis

A study was undertaken in rabbit tibiae to deter-postimplantation period, whereas untreated Ti implants mine the effects of chemical treatments and/or surface-in-formed direct contact with the bone only at 16 weeks. SEMduced bonelike apatite on the bone-bonding ability of tita-electron-probe microanalysis (EPMA) examination showed nium (Ti) implants. Smooth-surfaced plates (10 ϫ 10 ϫ 2 a Ca-P-rich layer at the interface between the treated immm) of pure Ti, alkalil-and heat-treated Ti, and bonelike plants and bone, although the Ca-P-rich layer was not deapatite-formed Ti after the treatments were implanted into tected on the surface of untreated implants during observathe tibial metaphyses of mature rabbits. The tibiae containing tion periods. The results of this study suggest that chemical the implants were harvested at 4, 8, and 16 weeks after im-treatments may accelerate the bone-bonding behavior of titaplantation and subjected to a tensile testing and histologic nium implants and enhance the strength of bone-implant evaluation. Biomechanical results showed that both treated bonding by inducing a bioactive surface layer on Ti implants. implants exhibited significantly higher failure loads com-