Reconstruction skeleton for the lower human jaw using CAD/CAM/CAE

There are several methods of reconstruction for lower human jaw, but the most common and safest is using plates and screws. The size of the lower jaw bone varies from person to person, therefore plates and screws are available in different sizes, yet they do not fulfill the surgeon’s entire needs, there are a few problems that they pose. This paper presents a general algorithm for making a parametric master model to fit all sizes of lower human jaws. The surgeon will only need to fill in the parameters which describe the features of lower human jaw for a specific patient, and then CAD/CAM Software will automatically create the suitable master model, check stress analysis and create CNC part program required for manufacturing the actual lower human jaw. Several lower human jaws have been created using the proposed approach and satisfactory results were obtained.