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Related Experiment Videos

A two-stage impression technique for custom facial prostheses

A J Coleman1, J W Schweiger, J Urquiola

  • 1Department of Adult Restorative Dentistry, University of Nebraska, College of Dentistry, Lincoln.

The Journal of Prosthetic Dentistry
|April 1, 1995
PubMed
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This study presents a novel two-stage impression technique for facial prosthetics. The method uses polyvinyl siloxane and irreversible hydrocolloid for accurate tissue recording in an upright position, improving prosthetic fit.

Area of Science:

  • Dental Materials Science
  • Prosthodontics
  • Biomedical Engineering

Background:

  • Accurate impression techniques are crucial for fabricating well-fitting facial prostheses.
  • Existing methods may suffer from distortion or patient discomfort.
  • Recording maxillofacial tissues in a physiologically relevant state is challenging.

Purpose of the Study:

  • To describe a new two-stage impression technique for facial prostheses.
  • To achieve accurate tissue recording with minimal distortion.
  • To improve the fabrication process of facial prosthetics.

Main Methods:

  • Utilized a custom impression tray.
  • Employed a two-stage impression process combining polyvinyl siloxane and irreversible hydrocolloid.

Related Experiment Videos

  • Recorded tissues with the patient in an upright position and facial muscles at rest.

    • Main Results:

    • The technique successfully recorded tissues with minimal distortion.
    • Achieved high accuracy in capturing the details of the area to be contacted by the prosthesis.
    • The procedure was found to be simple and effective.

    Conclusions:

    • The described two-stage impression technique offers a simple and accurate method for facial prosthesis fabrication.
    • This technique overcomes limitations of previous impression methods.
    • It ensures a more precise fit and potentially better patient outcomes.