1. Finite Element Analysis of a Dental Crown Using ANSYS

2. Team 5 David Butler Jr. Radwan Kalo Matt Kayal David Pitchure
Cynthia Quinn

3. Objective
Study the effects of stresses on the proposed dental crown material, a glass ceramic (Dicor/MGC).

4. Description
The figure below illustrates the dentine, cement, Dicor/MGC, and enamel. This shows the simulation of occlusal contact between tooth enamel and a ceramic dental crown.
Constraints

5. Refined Mesh
In High Stress Region

6. Biting Simulation

7. Crack Propagation
This study focuses on the generation of stress and crack propagation over time due to a pressure of approximately 7 MPa applied to the ceramic crown.

8. Initial Stress Distribution

9. Crack Initiation

10. Crack Propagation

11. Crack Propagation Through Crown Model

12. Crack Propagation with Void In Cement
This study focuses on the case where a void exists between the ceramic crown and the dentin structure. This model illustrates realistic conditions due to uneven distribution or degradation of cement.

13. Initial Stress Distribution

14. Crack Initiation

15. Crack Propagation

16. Crack Propagation Through Crown Model with Void in Cement

17. Stress Comparison

18. Future Considerations
Geometry Changes
Material Property Changes
3-D Analysis

19.  Special Thanks 
Dr. Guangming Zhang
Yuqing Cao