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Related Experiment Videos

Wettability of denture materials.

A Zissis1, S Yannikakis, R G Jagger

  • 1Department of Removable Prosthodontics, Dental School, University of Athens, Greece. gpolyz@cc.uoa.gr

Quintessence International (Berlin, Germany : 1985)
|August 9, 2001
PubMed
Summary

Wettability of denture materials impacts retention and comfort. Soft lining materials showed the poorest wetting, while denture base materials had intermediate wetting properties, with varnish altering results.

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Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering
  • Surface Science

Background:

  • Denture retention and comfort are crucial for oral function and patient satisfaction.
  • Adequate wettability of denture materials is essential for optimal performance and patient experience.
  • Understanding the surface properties of various denture materials is key to improving prosthetic devices.

Purpose of the Study:

  • To evaluate and compare the wettability of nine distinct commercially available dental materials.
  • To determine the influence of material type and surface treatment on wettability characteristics.
  • To provide data that can inform the selection of materials for improved denture outcomes.

Main Methods:

  • Dynamic contact angle analysis was employed to measure wettability.

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  • Equilibrium contact angle (thetae) and contact angle hysteresis were quantified for each material.
  • Nine materials, including denture base, hard lining, and soft lining materials (with/without varnish), were tested in vitro.

    • Main Results:

    • Equilibrium contact angles ranged from 63.9 to 81.0 degrees, with statistically significant differences among materials.
    • Contact angle hysteresis varied from 16.0 to 51.2 degrees, also showing significant inter-material differences.
    • Heat-polymerized soft lining materials exhibited the highest thetae, autopolymerized soft liners the lowest, and base materials intermediate values.

    Conclusions:

    • Soft lining materials, particularly heat-polymerized ones, demonstrated poorer wettability compared to denture base materials.
    • Autopolymerized soft liners showed superior wettability among the lining materials tested.
    • Varnish treatment significantly altered the wetting characteristics of the tested denture materials.