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Placing dental implants in edentulous patients is a difficult task, as the anatomy of patients has a high variability. The expansion of the pneumatized maxillary sinus after tooth extraction is the biggest impediment of all. Because of the undersized ridge width patients need bone grafting in order to compensate the loss of their own. This procedure is performed by the oro-maxillo-facial surgeon who evaluates, advises and offers the patient the best medical guidance. A series of surgical techniques and surgical implants have been performed in the field of bone grafting, but only a few of them are now being used.