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[Impression disinfection--clinical tests].

I Peroz1

  • 1Fachbereich Zahn-, Mund- und Kieferheilkunde der Freien Universität Berlin.

ZWR
|November 1, 1991
PubMed
Summary

Disinfecting dental impressions with glutaraldehyde solution does not affect gypsum cast quality or prosthodontic fit. This study confirms disinfection is safe for clinical use, addressing dentist reservations.

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Area of Science:

  • Dental Materials Science
  • Infection Control in Dentistry

Context:

  • Dental impression disinfection is crucial for infection control.
  • Some dental professionals hesitate to disinfect impressions due to perceived risks to accuracy.
  • Previous studies indicated minimal dimensional changes, but clinical effects required evaluation.

Purpose:

  • To clinically evaluate the effect of impression disinfection on the fit of fixed prosthodontics.
  • To determine if glutaraldehyde disinfection impacts the accuracy of dental casts.
  • To address and resolve reservations among dentists and dental technicians regarding routine impression disinfection.

Summary:

  • 248 dental impressions were tested; 138 were not disinfected, and 110 were immersed in a 2.5% glutaraldehyde solution (Cidex) for 15 minutes.
  • The study assessed the impact of this disinfection process on the dimensional stability of impressions and the quality of resulting gypsum casts.
  • Crucially, the clinical fit of fixed prosthodontics fabricated from these impressions was evaluated to ascertain any negative effects of disinfection.

Impact:

  • The findings definitively exclude impression disinfection as a cause of ill-fitting fixed prosthodontics.
  • This research provides evidence to support the routine disinfection of dental impressions, enhancing laboratory and clinical safety.
  • The study aims to increase confidence among dental practitioners in employing disinfection protocols without compromising prosthetic outcomes.

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