title: Sandwich Osteotomies to Treat Vertical Defects of the Alveolar Ridge.
abstract: OBJECTIVE
  To evaluate the vertical bone gain after osteotomy sandwich.
  
  
  METHODS
  Fourteen patients (mean age, 41 years) underwent 17 procedures of osteotomy sandwich. Of these 17 procedures, 15 involved reconstructive surgery and 2 involved the repositioning of implants. The patients were submitted to computed tomography before the surgical procedure and 4 months after the completion of the graft, with measurements taken to assess the vertical gain that had been achieved.
  
  
  RESULTS
  The results confirmed a satisfactory vertical gain in all cases (mean, 5.12 mm). The use of autogenous graft or biomaterial particles (in isolation) between the osteotomized segments proved to be viable. Three patients reported postoperative paresthesia, which healed spontaneously after 3 months. One patient exhibited dehiscence due to not following the postoperative recommendations. Forty implants were installed in the grafted regions, and 2 implants were repositioned.
  
  
  CONCLUSIONS
  The technique of sandwich osteotomy was found to be effective for height gain, and different materials can be used between the osteotomized segments.
authors.affiliation: *Professor, Dentistry Department, University of Araras Dental School, Araras, Brazil. †Professor, Dentistry Department, APCD Piracicaba Dental School, Piracicaba, Brazil. ‡Professor, Dentistry Department, Parana Federal University Dental School, Curitiba, Brazil. §Professor, Dentistry Department, College Ciodonto Dental School, Porto Velho, Brazil.
authors.forename: Claudio Ferreira
authors.initials: CF
authors.lastname: Nóia
authors.forename: Rafael
authors.initials: R
authors.lastname: Ortega-Lopes
authors.forename: Leandro Eduardo
authors.initials: LE
authors.lastname: Kluppel
authors.forename: Bruno Costa Martins de
authors.initials: BC
authors.lastname: Sá
mesh_terms: D000328:Adult; D000539:Alveolar Process / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D000540:Alveolar Ridge Augmentation / Q000379:methods; D016025:Bone Transplantation / Q000379:methods; D054893:Cone-Beam Computed Tomography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010027:Osteotomy / Q000379:methods*; D014057:Tomography, X-Ray Computed