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Current controversies in final impressions.

A Sadan1

  • 1Department of Prosthodontics, Louisiana State University School of Dentistry, New Orleans, USA.

Practical Periodontics and Aesthetic Dentistry : PPAD
|April 28, 1999
PubMed
Summary
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For accurate dental restorations, use polyether impressions carefully. Consider a second impression and pour immediately to prevent damage during shipping, especially in extreme temperatures.

Area of Science:

  • Dental Materials Science
  • Prosthodontics

Background:

  • Accurate final impressions are crucial for definitive dental restorations.
  • Polyether materials are commonly used for dental impressions.

Purpose of the Study:

  • To highlight potential issues with polyether impressions.
  • To provide recommendations for ensuring impression accuracy and integrity.

Main Methods:

  • Review of best practices for dental impression techniques.
  • Consideration of material properties and handling procedures for polyether.

Main Results:

  • Fractured abutments can occur if a single polyether impression is compromised.
  • Extreme temperatures during transport can negatively affect impression accuracy.

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Conclusions:

  • An additional polyether impression can mitigate risks associated with a single impression.
  • Pouring the impression immediately before shipping protects against environmental damage.