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[Mechanical studies on casting titanium alloy denture base].

M Ito1

  • 1First Department of Prosthodontics, Faculty of Dentistry, Tokyo Medical and Dental University.

Kokubyo Gakkai Zasshi. the Journal of the Stomatological Society, Japan
|March 1, 1990
PubMed
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The new Ti-20Cr-0.2Si alloy shows promising mechanical properties for cast partial denture frameworks. Its design should mimic gold alloys, with clasp undercuts limited to 0.50mm for optimal performance.

Area of Science:

  • Materials Science
  • Biomaterials Engineering
  • Dental Prosthetics

Background:

  • Developing novel alloys for dental prosthetics is crucial for improving patient outcomes.
  • Titanium alloys offer biocompatibility and desirable mechanical properties for dental applications.

Purpose of the Study:

  • To evaluate the mechanical properties of a new Ti-20Cr-0.2Si alloy for cast partial denture components.
  • To establish design guidelines for denture bases using this novel titanium alloy.

Main Methods:

  • Mechanical testing of clasps, bars, and frames made from Ti-20Cr-0.2Si alloy.
  • Comparative analysis against pure Ti, Co-Cr alloy, and gold alloy.
  • Cyclic bending tests to assess permanent deflection and fracture resistance.

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Main Results:

  • Ti-20Cr-0.2Si alloy exhibited lower bending strength than Co-Cr alloy but similar retentive force potential to gold alloy.
  • Permanent deflection in cyclic bending was comparable to gold alloy, outperforming pure Ti and Co-Cr.
  • Optimal clasp undercut for Ti-20Cr-0.2Si alloy is recommended at 0.50mm or less.

Conclusions:

  • The Ti-20Cr-0.2Si alloy demonstrates suitable bending behavior and strain distribution for denture bars and frames, comparable to gold alloys.
  • Design considerations for Ti-20Cr-0.2Si alloy components should align with established gold alloy design principles.
  • Further research may explore optimizing alloy composition and processing for enhanced mechanical properties in dental applications.