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Related Experiment Videos

Cyclical deformation behaviour of denture soft lining materials

K R Williams1, R G Jagger, S Sadamori

  • 1Department of Prosthetic Dentistry, University of Wales College of Medicine, Dental School, Cardiff, UK.

Journal of Dentistry
|July 1, 1996
PubMed
Summary

This study evaluated the elastic behavior of five denture soft lining materials during simulated chewing. Molloplast B performed best under low forces, while Novus excelled under high forces, showing adaptable energy absorption.

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Area of Science:

  • Biomaterials Science
  • Dental Materials Engineering

Background:

  • Denture soft lining materials are crucial for patient comfort and function.
  • Understanding their mechanical properties under dynamic loading is essential for material selection and design.

Purpose of the Study:

  • To investigate the deformation and elastic behavior of five denture soft lining materials.
  • To assess material performance under simulated masticatory dynamic cyclic loading.
  • To compare energy absorption characteristics across different applied forces.

Main Methods:

  • Utilized an Instron tensile testing machine modified for cyclic loading.
  • Tested five soft lining materials over 5-minute periods simulating chewing.
  • Measured load and strain semi-continuously to analyze deformation.

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Main Results:

  • Calculated strain energy, strain energy densities, and moduli for each material.
  • Observed elastic behavior in all materials during the simulated 5-minute chewing cycle.
  • Demonstrated varying energy absorption capacities based on applied load.

Conclusions:

  • All tested materials exhibited elastic, though not perfectly linear elastic, behavior.
  • Molloplast B showed superior energy absorption at lower testing loads.
  • Novus demonstrated higher energy absorption at increased testing loads.