Dynamic viscoelastic properties and the age changes of long-term soft denture liners

Hiroshi Murata, Norihiro Taguchi, Taizo Hamada, John F. McCabe

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

The dynamic viscoelastic properties of long-term soft denture liners were measured over a wide range of frequencies using a dynamic viscoelastometer based on a non-resonance-forced vibration principle. Changes in properties over a 3yr period have also been monitored. One acrylic material, one fluoroelastomer, one heat cured silicone and one self-curing addition silicone were used. Complex dynamic tensile modulus (E(*)), tensile storage modulus (E'), tensile loss modulus (E'') and loss tangent (tanδ) were determined over the frequency range from 0.01 to 100 Hz on administration of a 0.27% strain at 37°C. The dynamic viscoelasticity of the acrylic and fluoroelastomer products was more sensitive to changes in frequency than that of silicone products. The acrylic material and fluoroelastomer exhibited viscoelastic behaviour whilst silicones exhibited elastic behaviour. The silicone products remained unchanged after soaking for 3yr whilst the acrylic and fluoroelastomer products underwent significant change. Copyright (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)1421-1427
Number of pages7
JournalBiomaterials
Volume21
Issue number14
DOIs
Publication statusPublished - 2000 Jul

Keywords

  • Age changes
  • Dynamic viscoelasticity
  • Frequency
  • Non-resonance-forced vibration method
  • Soft denture liners

ASJC Scopus subject areas

  • Bioengineering
  • Ceramics and Composites
  • Biophysics
  • Biomaterials
  • Mechanics of Materials

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