論文

国際誌
2022年2月

The effect of simple heat treatment on apatite formation on grit-blasted/acid-etched dental Ti implants already in clinical use.

Journal of biomedical materials research. Part B, Applied biomaterials
  • Ayano Ogura
  • Seiji Yamaguchi
  • Phuc Thi Minh Le
  • Kayoko Yamamoto
  • Michi Omori
  • Kazuya Inoue
  • Nahoko Kato-Kogoe
  • Yoichiro Nakajima
  • Hiroyuki Nakano
  • Takaaki Ueno
  • Tomohiro Yamada
  • Yoshihide Mori
  • 全て表示

110
2
開始ページ
392
終了ページ
402
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1002/jbm.b.34915

Grit-blasted/acid-etched titanium dental implants have a moderately roughened surface that is suitable for cell adhesion and exhibits faster osseointegration. However, the roughened surface does not always maintain stable fixation over a long period. In this study, a simple heat treatment at 600°C was performed on a commercially available dental Ti implant with grit-blasting/acid-etching, and its effect on mineralization capacity was assessed by examining apatite formation in a simulated body fluid (SBF). The as-purchased implant displayed a moderately roughened surface at the micrometer scale. Its surface was composed of titanium hydride accompanied by a small amount of alumina particles derived from the grit-blasting. Heat treatment transformed the titanium hydride into rutile without evidently changing the surface morphology. The immersion in SBF revealed that apatite formed on the heated implant at 7 days. Furthermore, apatite formed on the Ti rod surface within 1 day when the metal was subjected to acid and heat treatment without blasting. These indicate that apatite formation was conferred on the commercially available dental implant by simple heat treatment, although its induction period was slightly affected by alumina particles remaining on the implant surface. The heat-treated implant should achieve stronger and more stable bone bonding due to its apatite formation.

リンク情報
DOI
https://doi.org/10.1002/jbm.b.34915
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/34323348
ID情報
  • DOI : 10.1002/jbm.b.34915
  • PubMed ID : 34323348

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