Virtual adjustment of the occlusal surface for complete denture tooth arrangement

Complete denture CAD/CAM technology offers the prospects of drastically reducing the time to provide service to patients. The tooth arrangement and adjustment of the occlusal surface are key steps of complete denture CAD/CAM. This work presents an effective method of tooth arrangement and virtual adjustment of the occlusal surface for complete denture. After teeth features and oral features were extracted, auto tooth arrangement for complete denture based on feature-driven method was performed. Then, interference area Detection based on seed filling algorithm was taken. Finally, Laplacian local deformation was performed to minimize the over-interference on the occlusal surface. Some examples were tested in this work and the results demonstrated that the proposed method is effective and feasible.