Insufficient interarch space due to the non replacement of extracted teeth leads to supraeruption of the opposing teeth which causes’ difficulty in prosthetic rehabilitation at a later date. The posterior maxillary segmental osteotomy becomes a more simple and conservative alternative management to achieve the surgical correction of the supraerupted maxillary segment. The purpose of this paper is to present a case of severe supraeruption of maxillary teeth managed by posterior maxillary segmental osteotomy.