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Related Experiment Video

Updated: Nov 21, 2025

Applying Permanent, Robust Stenciled Patterns of Fine Particles to Elastomeric Surfaces
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Comparative surface detail reproduction for elastomeric impression materials: Study on reproducibility performance.

G Varvara1, B Sinjari1, S Bernardi2

  • 1Department of Medical, Oral and Biotechnological Sciences, Dental School, 'G. D'Annunzio' University of Chieti-Pescara, Chieti, Italy.

Journal of Biological Regulators and Homeostatic Agents
|January 13, 2021
PubMed
Summary
This summary is machine-generated.

Polyether (PE) dental impression material demonstrated superior surface detail accuracy compared to vinyl polysiloxane (VPS) and vinyl polyether silicone (VPES). PE materials had significantly fewer defects, making them more reliable for accurate dental impressions.

Keywords:
impression materialspolyetherprosthetics dentistryvinyl polyether siliconevinyl polysiloxane

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Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering
  • Restorative Dentistry

Background:

  • Accurate dental impressions are crucial for fabricating precise prosthetics.
  • Elastomeric impression materials are widely used, but their surface reproduction accuracy varies.
  • Void formation in impressions can compromise the fit and quality of dental restorations.

Purpose of the Study:

  • To compare the surface detail reproduction accuracy of three dental elastomeric impression materials.
  • To evaluate the incidence and types of voids in impressions made with vinyl polysiloxane (VPS), vinyl polyether silicone (VPES), and polyether (PE) materials.
  • To determine which material offers superior accuracy for dental impressions.

Main Methods:

  • An in-vitro study utilizing a stainless-steel model with two abutments.
  • 10 impressions per material group (VPS, VPES, PE) using a two-phase, one-step technique.
  • Assessment of impressions for enclosed and open voids to quantify defect frequency and type.

Main Results:

  • High defect frequency (95%) observed for VPS and VPES impression materials.
  • Significantly lower defect frequency (30%) for the PE impression material (P <.05).
  • No significant difference in defect types across the three materials.

Conclusions:

  • Polyether (PE) impression material exhibits significantly better accuracy in reproducing surface detail compared to VPS and VPES.
  • PE materials result in fewer voids, enhancing the reliability of dental casts and subsequent restorations.
  • The choice of impression material significantly impacts the accuracy of dental impressions.