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Resilient lining materials for dentures

C J Thomas1, T Mori

  • 1Department of Prosthetic Dentistry, University of Sydney, Surry Hills, NSW, Australia.

Australian Prosthodontic Journal
|January 1, 1993
PubMed
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This study evaluated denture lining materials, finding that Molloplast B and Xantopren showed minimal deformation. Kurepeet, a fluoropolymer, demonstrated suitable visco-elastic properties for long-term denture liners.

Area of Science:

  • Materials Science
  • Biomaterials Engineering
  • Prosthodontics

Background:

  • Resilient denture liners are crucial for patient comfort and fit.
  • Key properties include softness, resiliency, and visco-elasticity.
  • Common materials include plasticized resins, silicone rubbers, and fluoropolymers.

Purpose of the Study:

  • To evaluate the mechanical properties of modern resilient denture lining materials.
  • To determine the suitability of Molloplast B, Kurepeet, Visco-gel, and Xantopren as denture liners.
  • To assess compliance with desired softness and visco-elasticity requirements.

Main Methods:

  • Compression tests were conducted on four materials: Molloplast B (silicone rubber), Kurepeet (fluoropolymer), Visco-gel (tissue conditioner), and Xantopren (silicon impression material).

Related Experiment Videos

  • Deformation and permanent deformation were measured after 15 seconds of loading.
  • Recovery characteristics were analyzed to assess visco-elastic behavior.

    • Main Results:

    • Molloplast B and Xantopren exhibited low displacement (4%) and minimal permanent deformation (0.4%).
    • Visco-gel and Kurepeet showed higher initial displacement (up to 32% and 13%, respectively) with significant permanent deformation.
    • Kurepeet displayed visco-elastic recovery, unlike the more elastic materials with unyielding properties.

    Conclusions:

    • Kurepeet, due to its visco-elasticity, is a promising candidate for long-term resilient denture liners.
    • Materials with high initial elasticity may be unyielding and less suitable.
    • The study confirms that soft, visco-elastic properties are essential for effective resilient denture liners.