Cranioplasty was proposed by Falloppio and later by Pare in 1634. During the last century, in particular, there has been a marked increase in the use of alloplastic materials for cranioplasty comprising a wide variety of materials tantalium, titanium, acrylic, polyethylene, silicone and ceramics. The authors assess the efficacy of cranioplasty with carbon composite” intost-2” for cranial defect post brain injury was realized in the Department of neurosurgery of Saint-Paul hospital.