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Journal of Failure Analysis and Prevention

, Volume 10, Issue 2, pp 138–142 | Cite as

Failure Analysis of Titanium-Based Dental Implant

  • Cássio Barbosa
  • Jôneo Lopes do Nascimento
  • Robson Oliveira Centeno
  • Iêda Maria Vieira Caminha
  • Ibrahim de Cerqueira Abud
Technical Article---Peer-Reviewed

Abstract

Metallic materials designed for applications in orthopedic or dental surgical implants must show a group of properties, including biocompatibility, mechanical strength and resistance to degradation (by wear or corrosion) outstand. In order to assure that the properties are achieved, the implant materials must fulfill certain requirements, usually specified in standards. The standards also include chemical composition, microstructure and even macrographic aspects. The main aim of this work was to perform a failure analysis on a titanium-based dental implant and connect the possible causes of failure with the associated material requirements which were previously mentioned. Evaluation techniques included metallographic analysis by optical microscopy and fractographic analysis by scanning electron microscopy (SEM). The results of the examinations suggested that, in spite of their adequate microstructures, the implants fractured due to the overload generated by stress raisers which were found in the implants.

Keywords

Failure analysis Implants Microscopy 

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Copyright information

© ASM International 2009

Authors and Affiliations

  • Cássio Barbosa
    • 1
  • Jôneo Lopes do Nascimento
    • 1
  • Robson Oliveira Centeno
    • 1
  • Iêda Maria Vieira Caminha
    • 1
  • Ibrahim de Cerqueira Abud
    • 1
  1. 1.Instituto Nacional de Tecnologia (INT)Rio de JaneiroBrazil

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