title: Segmental Dento-alveolar Intrusive Osteotomy in Posterior Maxilla with Lack of Inter-arch Distance for Prosthetic Rehabilitation. A Technique Combined with Sinus Floor Elevation.
abstract: The aim of this paper is to present a technique for segmental dento-alveolar intrusive osteotomy in a posterior maxilla with lack of inter-arch distance for prosthetic rehabilitation combined with sinus floor elevation.
  
  
  METHODS
  A full thickness flap is elevated exposing the lateral wall of the maxillary sinus. A lateral window is opened and the Schneiderian membrane elevated. Segmental dento-alveolar osteotomy is performed. After complete detachment of the segment, it is adapted and fixed to the new position using the pre-prepared guide, making sure not to damage or perforate the Schneiderian membrane.
  
  
  RESULTS
  Four cases of segmental dento-alveolar intrusive osteotomy in a posterior maxilla combined with sinus floor elevation were performed utilizing the above-mentioned technique. All surgeries went according to plan, and healing was uneventful except for swelling and pain that lasted for 10-14 days post- operatively. The opposing dentition was later treated by implant placement. The average follow-up time for those cases was 5.4 months. Vitality test four months after surgery was positive.
  
  
  CONCLUSIONS
  The presented technique for segmental dento-alveolar intrusive osteotomy combined with sinus floor elevation can serve as a viable treatment option in the posterior maxilla with lack of inter-arch distance due to severe overeruption.
authors.forename: Adi
authors.initials: A
authors.lastname: Lorean
authors.forename: Ziv
authors.initials: Z
authors.lastname: Mazor
authors.forename: Eitan
authors.initials: E
authors.lastname: Mijiritsky
authors.forename: Horia
authors.initials: H
authors.lastname: Barbu
authors.forename: Liran
authors.initials: L
authors.lastname: Levin
mesh_terms: D001860:Bone Plates; D016025:Bone Transplantation / Q000379:methods; D005500:Follow-Up Studies; D006801:Humans; D063166:Maxillary Osteotomy / Q000295:instrumentation / Q000379:methods*; D008443:Maxillary Sinus / Q000473:pathology; D008567:Membranes, Artificial; D008963:Molar / Q000473:pathology; D009297:Nasal Mucosa / Q000473:pathology; D059745:Piezosurgery / Q000379:methods; D059546:Sinus Floor Augmentation / Q000379:methods*; D013524:Surgical Flaps / Q000601:surgery; D014078:Tooth Eruption; D016896:Treatment Outcome
chemical_list: D008567:Membranes, Artificial