The Defense Department is funding research in three areas of 3D facial reconstruction surgery: models to accelerate surgery, facial skin generation and hard tissue repair and regeneration. 3D-printed facial models provide surgeons with a close model on which to base their work, and some new soldiers' features are scanned before their first missions. Skin can be regenerated on a custom mask made of polycaprolactone covered with a collagen-based matrix, and researchers have made progress in creating bone matrices.

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