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Palladium alloys for biomedical devices.

John C Wataha1, Kavita Shor

  • 1University of Washington School of Dentistry, Seattle, WA, USA. jwataha@u.washington.edu

Expert Review of Medical Devices
|June 30, 2010
PubMed
Summary

Palladium alloys are safe for biomedical uses like dental prostheses and vascular stents. They offer benefits over other metals and pose minimal biological risks, despite price fluctuations.

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Metallurgy

Background:

  • Palladium alloys are traditionally used in dental prostheses.
  • Emerging applications include vascular stents due to MRI compatibility.
  • Palladium content varies, impacting alloy properties.

Purpose of the Study:

  • To review the safety and utility of palladium alloys in biomedical applications.
  • To compare biological risks of palladium with other metals.
  • To discuss factors influencing palladium alloy use in medicine.

Main Methods:

  • Literature review of existing research on palladium alloys in biomedicine.
  • Analysis of alloy composition and its effect on mechanical and corrosion properties.
  • Evaluation of biocompatibility and hypersensitivity data.

Main Results:

  • Palladium alloys enhance strength, stiffness, and melting range.
  • They exhibit low corrosion rates and are safe for biomedical use.
  • Palladium presents fewer biological risks than nickel or silver; hypersensitivity is rare and often linked to nickel.

Conclusions:

  • Palladium alloys are safe and effective for dental and medical devices.
  • Their properties make them advantageous over other metallic biomaterials.
  • Market price volatility remains a key consideration for their widespread adoption.

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