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Related Experiment Videos

A polyvinylsiloxane denture soft lining material

J F McCabe1

  • 1Dental School, University of Newcastle upon Tyne, UK. j.f.mccabe@ncl.ac.uk

Journal of Dentistry
|August 12, 1998
PubMed
Summary
This summary is machine-generated.

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A new polyvinylsiloxane denture soft lining material shows promising properties, including excellent water stability and reduced peeling. Its performance is comparable to existing silicone materials, suggesting potential clinical advantages.

Area of Science:

  • Materials Science
  • Biomaterials Engineering
  • Dental Materials

Background:

  • Denture soft lining materials improve patient comfort and function.
  • Existing materials face challenges like water absorption and peeling.
  • A novel polyvinylsiloxane (PVS) based soft lining material has been developed.

Purpose of the Study:

  • To compare the key properties of a new PVS denture soft lining material against commercially available alternatives.
  • To evaluate the material's performance under simulated clinical conditions, including water storage.

Main Methods:

  • Five materials, including the new PVS product, were tested.
  • Properties assessed included setting characteristics, penetration resistance, elastic properties, water absorption, peel strength, and contact angle with water.

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  • Changes in properties after 90 days of water storage were also determined.

    • Main Results:

    • The new PVS material exhibited properties similar to heat-cured silicone liners, with medium softness (ISO 10139-2).
    • It was unique in not losing weight during water storage and showed minimal change in compliance over 90 days.
    • While bond strength to acrylic was moderate, cohesive failure within the liner suggests low peeling potential.
    • The PVS material demonstrated superior water surface affinity compared to other silicone products.

    Conclusions:

    • The new polyvinylsiloxane denture soft lining material offers comparable properties to existing silicone materials.
    • Its notable water stability, reduced peeling tendency, and convenient handling system suggest potential clinical benefits.
    • Further clinical evaluation is warranted to confirm its advantages in practice.