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A denture base resin with low water absorption.

M J Barsby1

  • 1Department of Prosthetic Dentistry, London Hospital Medical College, UK.

Journal of Dentistry
|August 1, 1992
PubMed
Summary

Poly(isobutyl methacrylate) shows low water absorption but poor mechanical properties, making it unsuitable as a sole denture base material. However, it may improve other materials by reducing water absorption when used as a co-monomer.

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Area of Science:

  • Polymer Science
  • Biomaterials Engineering
  • Dental Materials Science

Background:

  • Denture base materials require specific mechanical properties and low water absorption for clinical success.
  • Poly(methyl methacrylate) is the current standard but exhibits some water absorption.
  • Investigating alternative polymers is crucial for developing improved denture base solutions.

Purpose of the Study:

  • To evaluate poly(isobutyl methacrylate) as a potential denture base material.
  • To assess its water absorption, mechanical properties, and glass transition temperature.
  • To determine its suitability and potential as a co-monomer.

Main Methods:

  • Synthesis and characterization of poly(isobutyl methacrylate).
  • Mechanical testing (e.g., tensile strength, flexural modulus).
  • Water absorption tests and differential scanning calorimetry for glass transition temperature determination.

Main Results:

  • Poly(isobutyl methacrylate) exhibited very low water absorption.
  • The material demonstrated poor mechanical properties.
  • A low glass transition temperature was observed for poly(isobutyl methacrylate).

Conclusions:

  • Poly(isobutyl methacrylate) alone is unsuitable as a denture base material due to inadequate mechanical performance and low glass transition temperature.
  • Isobutyl methacrylate shows promise as a co-monomer to reduce water absorption in other denture base polymers.
  • Further research is warranted to explore co-polymerization strategies for enhanced denture base materials.

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