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The senior design project ‘Alternative Materials and Methods for Dental Restoration’ has a purpose of addressing the unmet need or engineering problem related to dental restoration by determining the available manufacturing methods and materials as an alternative to ‘Intra-oral digital scanners’. The project deliverables for this project were the tooth crown prototypes with the tolerance within 50 microns. The CAD model for this tooth was tested for its strength, physical properties, and suitability. The prototypes were developed through an additive method, i.e., 3D printing. The constraints for this project were related to budget and printer. Buying a highly qualitative 3D printer wasn’t an option because the fund available was only $500. The approach taken by the team included analysis using ANSYS Workbench and prototyping using additive method or 3D printing. The printer used was ‘M3D Printer’ with a cost of about $350.00. The results of the analysis gave the normal maximum strain and maximum directional deformation of a crown to be 0.0064 m/m and 0.0023 m, respectively. The maximum compressive force a tooth could withstand was about 30,000 lbf or 133.45 kN. The issues that remained were related to prototype’s smoothness and budget deficiency. The impact of this project is that the stress, strain and deformation testing of the tooth crowns let us decide their usefulness in comparison to other materials used for dental restoration. These analyses allow us to understand different behaviors exhibited by the tooth crowns under the applied force.
Mechanical and nuclear engineering, Stress, Deformation, Strain, and Prototyping
Engineering | Mechanical Engineering | Nuclear Engineering
Dr. Weining Wang
VCU Capstone Design Expo Posters
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