The impact of polymerization method on tensile bond strength between denture base and acrylic teeth

J Contemp Dent Pract. 2014 May 1;15(3):315-8. doi: 10.5005/jp-journals-10024-1535.

Abstract

Failure of the bond between acrylic teeth and the denture base resin interface is one of the major concern in prosthodontics. The new generation of denture bases that utilize alternate polymerization methods are being introduced in the market. The aim of the study is to evaluate the influence of polymerization methods on bonding quality between the denture base and artificial teeth. Sixty test specimens were prepared (20 in each group) and were polymerized using heat, microwave and visible light curing. The tensile strength was recorded for each of the samples, and the results were analyzed statistically. The light-activated Eclipse™ System showed the highest tensile strength, followed by heat curing. The microwave-cured samples exhibited the least bonding to the acrylic teeth. Within the limitations of this study, it can be concluded that the new generation of light-cured denture bases showed significantly better bonding to acrylic teeth and can be used as an alternative to the conventional heat-polymerized denture base.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acrylic Resins / chemistry*
  • Acrylic Resins / radiation effects
  • Composite Resins / chemistry
  • Composite Resins / radiation effects
  • Dental Bonding*
  • Dental Materials / chemistry*
  • Dental Materials / radiation effects
  • Dental Polishing / methods
  • Dental Stress Analysis / instrumentation
  • Denture Bases*
  • Hot Temperature
  • Humans
  • Light-Curing of Dental Adhesives / methods
  • Materials Testing
  • Methacrylates / chemistry
  • Methacrylates / radiation effects
  • Microwaves
  • Polymerization
  • Stress, Mechanical
  • Tensile Strength
  • Tooth, Artificial*

Substances

  • Acrylic Resins
  • Composite Resins
  • Dental Materials
  • Eclipse Prosthodontic Resin
  • Methacrylates
  • Acron MC
  • Lucitone