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Stereolithographic 3D Printing with Renewable Acrylates
Published on: September 12, 2018
Evaluation of Shear Bond Strength of Three Different Acrylic Resin and Artificial Denture Teeth with and without
Navleen Dandiwal1, Sandeep Kumar2, Shashikala Jain2
1Department of Prosthodontics, Surendera Dental College & Research Institute Sriganganagar, Rajasthan, India, Mobile: 9521497105,
Aim:
To compare and evaluate the shear bond strength of the tooth-denture base junction when three different commercially available acrylic resin base bonded to acrylic teeth with and without application of methyl methacrylate monomer on ridge lap area.
Materials And Methods:
A three-stepped cylindrical shaped die was customized. Sixty samples were fabricated with heat cure and self-cure acrylic resin with and without monomer application. A total of 60 samples were divided into three groups and six subgroups. • Group A-Twenty samples of Trevlon-HI heat-activated acrylic resin. • Subgroup A1-Ten samples of acrylic teeth bonded with Trevlon-HI heat-activated acrylic resin with the application of monomer on ridge lap area. • Subgroup A2-Ten samples of acrylic teeth bonded with Trevlon-HI heat-activated acrylic resin without application of monomer on ridge lap area. • Group B-Twenty samples of Trevalon heat-activated acrylic resin. • Subgroup B1-Ten samples of acrylic teeth bonded with Trevlon heat-activated acrylic resin with the application of monomer on ridge lap area. • Subgroup B2-Ten samples of acrylic teeth bonded with Trevlon heat-activated acrylic resin without application of monomer on ridge lap area. • Group C-Twenty samples of Trevlon-RR self-activated acrylic resin. • Subgroup C1-Ten samples of acrylic teeth bonded with Trevlon-RR self-activated acrylic resin with the application of monomer on ridge lap area. • Subgroup C2-Ten samples of acrylic teeth bonded with Trevlon-RR self-activated acrylic resin without monomer application on ridge lap area.
Results:
Samples obtained from high impact heat cure acrylic resin with monomer application shows higher bond strength when tested under the universal testing machine.
Conclusion:
With and without monomer application on high impact polymethylmethacrylate (PMMA) resin and Heat cured resin it was found that high impact shows better bond strength. Trevlon HI monomer shows a greater increase in strength due to the presence of cross-linking agents.
Clinical Significance:
The incorporation of mechanical surface treatments followed by monomer application significantly influences the bonding between denture teeth and denture base resin.
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