Developed in rigid polyurethane with access to both sides of the maxillary sinus for placement of conventional implants training. It also has a structure that simulates the human gum for the guided surgery technique training (we indicate the surgical guide cod. 9012C) and incision and suture. The product is composed by a part of the skull in transversal cut, from the ear to the face and it has a holding block on the back to be placed in the vise cod. 5027.