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Orbital and intracranial complications of dental cellulitis are exceptional. The authors report such a case with orbital cellulitis and frontal abscess that dictated orbital exenteration with resection of the eyelids. Before realization of an implant supported epithesis, the orbit was filled with a prefabricated vascularized fascio-osseous parietal bone flap. This allowed placement of two extra-oral fixtures (Nobel biocare) in an antero-posterior axis. In some cases, preimplant orbital bone graft appears to be the only solution when implant placement in the orbital rim is impossible or contra-indicated. Indications, advantages and disadvantages of this technique will be discussed.