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Related Experiment Videos

On titanium frameworks and alternative impression techniques in implant dentistry.

Anders Ortorp1

  • 1Department of Prosthetic Dentistry/Dental Materials Science and The Bränemark Clinic, Faculty of Odontology, The Sahlgrenska Academy, Göteborg, Sweden. anders.ortorp@vgregion.se

Swedish Dental Journal. Supplement
|February 16, 2005
PubMed
Summary

Computer numeric controlled (CNC)-milled titanium frameworks offer a viable alternative to gold-alloy for implant-supported restorations in the edentulous jaw. Digital impression techniques complement this digital workflow for enhanced precision.

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Area of Science:

  • Dental materials science
  • Biomaterials engineering
  • Prosthodontics

Background:

  • Implant-supported prostheses are crucial for restoring function in edentulous patients.
  • Traditional gold-alloy frameworks have been the standard, but material advancements offer alternatives.
  • Optimizing digital workflows is key to improving clinical and laboratory procedures.

Purpose of the Study:

  • To compare the clinical and material performance of implant-supported titanium frameworks versus gold-alloy frameworks.
  • To evaluate a digitized impression technique for optimizing material characteristics and procedures.
  • To assess laser-welded and CNC-milled titanium frameworks against gold-alloy standards.

Main Methods:

  • Two 5-year clinical follow-up studies compared laser-welded and CNC-milled titanium frameworks with gold-alloy frameworks.

Related Experiment Videos

  • Experimental studies evaluated CNC frameworks for fit, preload, and surface roughness.
  • A digitized photogrammetric impression technique was compared to conventional methods.

    • Main Results:

    • Laser-welded titanium frameworks showed a lower 5-year success rate than gold-alloy.
    • CNC-milled titanium frameworks demonstrated comparable 5-year performance and superior fit/precision to gold-alloy.
    • Photogrammetric impression precision was comparable to conventional techniques.

    Conclusions:

    • CNC-milled titanium frameworks are a suitable alternative to gold-alloy castings for implant-supported restorations.
    • The digital manufacturing platform enables the use of advanced digital impression techniques.
    • This digital approach enhances precision and offers a viable alternative for edentulous jaw rehabilitation.