Papers

Peer-reviewed
Apr, 2015

High-cycle fatigue behavior of beta-titanium orthodontic wires

Dental materials journal
  • Takashi Murakami
  • ,
  • Masahiro Iijima
  • ,
  • Takeshi Muguruma
  • ,
  • Fumiaki Yano
  • ,
  • Isao Kawashima
  • ,
  • Itaru Mizoguchi

Volume
34
Number
2
First page
189
Last page
195
Language
English
Publishing type
Research paper (scientific journal)
DOI
10.4012/dmj.2014-012
Publisher
JAPANESE SOC DENTAL MATERIALS DEVICES

This study investigated high-cycle fatigue behavior in three beta-Ti wires (TMA, Resolve, Gummetal). Fatigue was evaluated using a static three-point bending test and a high-cycle fatigue test with a three-point bending mode. The surfaces of fractured wires were observed with scanning electron microscopy, and the post-fatigue crystal structures were determined by micro-X-ray diffraction. The Gummetal wire exhibited the lowest elastic modulus, bending strength and fatigue limit, and exhibited the highest resilience of the three types of wire studied. However, no difference in the number of cycles to failure was observed among the three types of wire. The fatigue crack propagation and rapid propagation regions of all wires contained single-phase beta-Ti. The elastic modulus and bending strength influenced the fatigue limit, although these properties did not affect the number of cycles to fracture. The three types of 13-Ti wires exhibited similar risks of wire fracture.

Link information
DOI
https://doi.org/10.4012/dmj.2014-012
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/25740165
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000355962800008&DestApp=WOS_CPL
ID information
  • DOI : 10.4012/dmj.2014-012
  • ISSN : 0287-4547
  • Pubmed ID : 25740165
  • Web of Science ID : WOS:000355962800008

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