The article presents a clinical case of implantprosthetic rehabilitation of a patient who underwent segmental resection of the mandibular bone in the course of sarcoma treatment, with immediate reconstruction of the postoperative defect with a microvascular free fibular flap. The extent of the postoperative defect, and thereby the size of the graft, postoperative complications in the form of a reconstruction plate fracture, resulted in a reduction in the number of planned intraosseous implants. Two implants placed in the graft in the mental section of the mandible determinedthe use a removable prosthetic restoration in the form of an OVD lower framework prosthesis. The patient quickly adapted to the new prosthetic restoration. The stabilization of the prosthesis and the patient’s chewing capacity improved significantly compared to the situation before implantoprosthetic treatment, when the patient had been using a conventional framework prosthesis.