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2-Methacryloyloxyethyl Phosphorylcholine Polymer Treatment of Complete Dentures to Inhibit Denture Plaque Deposition
Published on: December 26, 2016
A long term study on residual monomer release from denture materials.
Alcibiades Zissis1, Stavros Yannikakis, Gregory Polyzois
1azisis@dent.uoa.gr
Summary
Heat polymerized denture resins release minimal residual monomer over 38 months. Auto polymerized materials and hard liners release significant monomer initially, but levels stabilize over time.
Area of Science:
- Materials Science
- Biomaterials Engineering
- Dental Prosthetics
Background:
- Residual monomer in denture materials can impact patient health and material longevity.
- Understanding long-term monomer release is crucial for selecting safe and durable denture bases.
Purpose of the Study:
- To quantify and compare residual monomer release from various denture materials over 38 months.
- To evaluate the long-term stability of monomer release in heat-polymerized and auto-polymerized denture base resins and hard liners.
Main Methods:
- Gas liquid chromatography was used to determine residual monomer levels.
- Specimens were tested at one week, 12 months, and 38 months post-curing.
- Statistical analysis included two-way ANOVA and Scheffe's test.
Main Results:
- Heat-polymerized resins exhibited significantly lower residual monomer than auto-polymerized resins.
- Auto-polymerized materials and hard liners released significant monomer in the first 12 months, with levels stabilizing thereafter.
- Heat-polymerized resins showed no significant monomer release throughout the 38-month period.
Conclusions:
- Heat-polymerized denture base acrylic resins are associated with minimal long-term residual monomer release.
- Auto-polymerized denture base resins and hard liners demonstrate initial monomer release, but stabilize over time.
- Material type significantly influences residual monomer release and long-term stability in denture prosthetics.