Different Manufacturing Techniques of Facial Prostheses

The first intervention (I1) involves direct printing of the final prosthesis (rapid manufacturing, RM). The final prosthesis will be printed using a biocompatible rubber-like printable soft resin (Biomed Flex 80A resin, Formlabs, USA), and then will be colored and characterized to match the surrounding anatomy.

In the second intervention (I2), the negative mold will be achieved directly, will be virtually designed based on an inverted STL file of prosthesis prototype/ pattern (direct mold making, DMM).

"the negative mold will be fabricated indirectly by printing the prosthesis prototype from resin for subsequent mold fabrication (indirect mold making, IMM). The printed prototype will be tried on the patient and adjusted in terms of shape, size and marginal fit.~After the try-in stage the prototype will be duplicated into wax by using silicone rubber molding and a conventional stone mold will be fabricated."