[Extra-oral implants: surgical procedures].

The different extra-oral implant systems (screw and plate fixation) are not compatible. Rigorous surgical procedure (detailed and illustrated here) is mandatory to obtain the best implant osseointegration and epithesis loading 3 months later. Besides surgical procedure, careful bone and peri-abutment suture are required for success.

[Extra-oral implants: principal areas of implantation].

The success of extra-oral implants raises a certain number of technical and medical problems. Among these, the anatomy of the implant zone and bone quality are determining factors for osteointegration of the implants. We describe the principal zones of implantation detailing the risks involved in each area.

[Sebaceus nevus of Jadassohn. Apropos of 62 surgically treated cases and review of the literature].

The analysis of 62 cases of nevus sebaceus of Jadassohn and the study of the literature allows to define the clinical and histo-pathologic features of this benign tumor. The massive development of sebaceous glands, papillomatous epidermal hyperplasia, and maturation of apocrines glands, are present in a considerable number of cases. The lesions occurred on the scalp, face, auricular area and neck and are usually present at birth as a yellowish orange area.

[Mandibular reconstruction of gunshot wounds by progressive bone distraction. Report of five cases].

Five adult patients with gunshot wound defect underwent bilateral mandibular lengthening by an extraoral device. All patients presented with interrupting mandibular defect of 50 to 100 mm. Distraction of bone fragments led to mandibular reconstruction without bone grafting and simultaneous expansion of soft tissues, avoiding free or pedicled myocutaneous flaps for soft tissue reconstruction of the lower third of the face.