論文

査読有り
2013年10月

Effect of immediate loading on the biomechanical properties of bone surrounding the miniscrew implants

EUROPEAN JOURNAL OF ORTHODONTICS
  • Masahiro Iijima
  • ,
  • Susumu Nakagaki
  • ,
  • Yoshitaka Yasuda
  • ,
  • Keisuke Handa
  • ,
  • Toshiyuki Koike
  • ,
  • Takeshi Muguruma
  • ,
  • Takashi Saito
  • ,
  • Itaru Mizoguchi

35
5
開始ページ
577
終了ページ
582
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1093/ejo/cjs055
出版者・発行元
OXFORD UNIV PRESS

The aim of this study was to investigate the effect of immediate loading on the biomechanical properties of bone surrounding a miniscrew implant. Forty titanium alloy miniscrew implants were placed on the buccal side of the maxillae and mandibles in four beagle dogs. Twelve pairs of miniscrew implants were immediately loaded with approximately 150 g of continuous force using nickel-titanium coil springs and the remaining 16 implants were left unloaded for 8 weeks. Nanoindentation testing was performed (peak load 10 mN) and the hardness and elastic modulus were calculated. Two series of indentations (in cortical and trabecular bone) for both the compression and tension sides were made. For each site, five indentations were placed approximately 25 mu m from the implant-bone interface and 250 mu m from the screw thread. The mean hardness and elastic modulus were generally higher in mandibles than maxillae and were higher in cortical bone than in trabecular bone. The trabecular bone near the implant-bone interface on the compression side was significantly harder than that at other locations in trabecular bone. In conclusion, this is the first study that has investigated the biomechanical properties of bone surrounding a miniscrew implant under immediate loading using nanoindentation testing. The mechanical properties of bone surrounding a miniscrew implant may be influenced by immediate loading.

Web of Science ® 被引用回数 : 3

リンク情報
DOI
https://doi.org/10.1093/ejo/cjs055
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/22952154
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000325103700005&DestApp=WOS_CPL