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The high-copper dental amalgam alloys

D B Mahler1

  • 1Oregon Health Sciences, University School of Dentistry, Portland 97201, USA.

Journal of Dental Research
|January 1, 1997
PubMed
Summary

Dental amalgam restorations improved significantly with the introduction of high-copper alloys. Increased copper content enhanced the clinical performance of these durable, cost-effective dental materials.

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Area of Science:

  • Dental Materials Science
  • Restorative Dentistry

Background:

  • Historically, silver-mercury amalgam faced challenges in dental restoration development.
  • Early amalgam alloys presented difficulties in achieving consistent, successful clinical results.

Observation:

  • A significant advancement in dental amalgam occurred approximately 60 years after its widespread adoption.
  • The key innovation involved increasing the copper content in amalgam alloys, a change previously deemed unsuitable.

Findings:

  • The development of high-copper dental amalgam alloys marked a major improvement in material performance.
  • These alloys offered enhanced characteristics for durable, cost-effective, and easily placed dental restorations.

Implications:

  • High-copper amalgams became the preferred material for dental restorations due to their improved clinical outcomes.
  • This discovery highlights the importance of material composition adjustments in advancing restorative dentistry.

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