Paper Title:
Enhanced Osteoconductivity of Positively Charged Titanium Metal
  Abstract

We previously found that a positively charged Ti metal has a higher apatite forming ability in vitro than a non-charged Ti metal. For in vivo analysis using a rabbit model, two types of Ti metal were examined: porous Ti metals heat-treated subsequent to a mixed acid treatment (MHs) and porous Ti metals not heat-treated subsequent to the same mixed acid treatment (MOs). Although MHs and MOs had the same macro- and micro-structure, they had different surface charges. MHs, considered positively charged, had significantly higher bone ingrowth than MOs, considered charged zero. Similarly, MHs had significantly higher percentages of bone–implant contact than MOs at 3- and 6-week. A simple heat treatment made acid-treated porous titanium implants more osteoconductive. These results suggest that a positive charge obtained by a heat treatment enhances bioactivity of acid-treated titanium implants.

  Info
Periodical
Key Engineering Materials (Volumes 493-494)
Main Theme
Edited by
Eyup Sabri Kayali, Gultekin Goller and Ipek Akin
Pages
787-790
DOI
10.4028/www.scientific.net/KEM.493-494.787
Citation
T. Kawai, M. Takemoto, S. Fujibayashi, M. Neo, D. K. Pattanayak, K. Doi, T. Matsushita, T. Kokubo, T. Nakamura, "Enhanced Osteoconductivity of Positively Charged Titanium Metal", Key Engineering Materials, Vols. 493-494, pp. 787-790, 2012
Online since
October 2011
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