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Biomechanical Behavior of a 3D-Printed Denture Base Material
The International Journal of Prosthodontics
|March 18, 2024
Summary
An additive manufacturing (AM) polymer showed adequate biocompatibility for complete dentures but requires further development due to inadequate flexural strength and solubility. Further research is needed to improve material properties for clinical use.
Area of Science:
- Biomaterials science
- Polymer science
- Dental materials
Background:
- Complete dentures are crucial for oral function and aesthetics.
- Traditional heat-curing acrylic resins (AR) are commonly used but have limitations.
- Additive manufacturing (AM) offers potential for customized denture fabrication.
Purpose of the Study:
- To compare material properties of an AM polymer against AR for complete dentures.
- To evaluate flexural strength, elastic modulus, water sorption, solubility, and biocompatibility.
- To test if AM polymer fabrications meet clinical use standards.
Main Methods:
- Material properties (flexural strength, elastic modulus, water sorption, solubility, biocompatibility) were tested according to ISO 20795-1:2013.
- Biocompatibility assessed using MTT and SRB assays.
- Specimens were subjected to water storage for up to 6 months before testing.
Main Results:
- Significant differences were found between the AM polymer and AR.
- The AM polymer demonstrated inadequate flexural strength and solubility values.
- Flexural strength of the AM polymer was stable after 6 months of water storage.
Conclusions:
- The AM polymer exhibits adequate biocompatibility and strength stability.
- Further material development is necessary to enhance flexural strength and solubility for complete denture applications.
- The AM polymer requires improvement before widespread clinical adoption for dentures.
