Wax Sculpting an Orbital Prosthesis with a little help from CAD/CAM Technology

We’ve been working with some different technologies over in the Craniofacial Center to create orbital prostheses. In this case, we used a Cone Beam (CB) CT scan of the patient’s orbit, which we segmented out in Mimics. We then manipulated the data in 3D Studio Max and Rhinoceros to get it sized and oriented properly for rapid prototyping using subtractive 3D printing and a CNC Mill in hard wax. From there we created a silicone mold in RTV 3110 Silicone (which is my new favorite duplicating material) and made a clinical wax positive to finish. Our data wasn’t ideal (for example, the eye was closed, some scattering of the CB CT Data created distortions in the mold of the superior bony orbital) but it was still a promising workflow and I could see where it could help speed production along in some cases.

We are also using photogrammetry to create nasal prostheses. Photogrammetry is amazing. More about that later. Enjoy!

Orbital Prosthesis, Clinical Wax Sculpt

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