title: Piezoelectric vertical bone augmentation using the sandwich technique in an atrophic mandible and histomorphometric analysis of mineral allografts: a case report series.
abstract: The aim of this report is to investigate the efficacy of the sandwich technique for vertical bone augmentation in the atrophic posterior mandible of three patients through clinical and histologic studies. A complete osteotomy was conducted using a piezoelectric device to create segmented bone in the atrophic edentulous area and the segmented bone was elevated 6 mm vertically. Interpositional mineral allograft materials were inserted in the space between the basal bone and the segmented bone. After a mean 5-month healing period, bone biopsies were taken in the grafted areas and implants were placed. Six millimeters of vertical bone gain was achieved in all patients by using the sandwich technique. Histomorphometric analysis of the biopsy specimens showed favorable new bone formation without inflammation.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Daegu Catholic University, Daegu, Republic of Korea. dssohn@cu.ac.kr
authors.forename: Dong-Seok
authors.initials: DS
authors.lastname: Sohn
authors.forename: Hong-In
authors.initials: HI
authors.lastname: Shin
authors.forename: Mi-Ra
authors.initials: MR
authors.lastname: Ahn
authors.forename: Ji-Soo
authors.initials: JS
authors.lastname: Lee
mesh_terms: D020341:Absorbable Implants; D000540:Alveolar Ridge Augmentation / Q000379:methods*; D001284:Atrophy; D001706:Biopsy; D001860:Bone Plates; D018786:Bone Substitutes / Q000627:therapeutic use*; D003094:Collagen; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000601:surgery; D008297:Male; D008334:Mandible / Q000473:pathology / Q000601:surgery*; D008567:Membranes, Artificial; D008875:Middle Aged; D010012:Osteogenesis / Q000502:physiology; D010027:Osteotomy / Q000379:methods; D020442:Poloxamer / Q000627:therapeutic use; D014464:Ultrasonic Therapy / Q000379:methods*; D014945:Wound Healing / Q000502:physiology
chemical_list: D018786:Bone Substitutes; D015921:Dental Implants; D008567:Membranes, Artificial; C551509:Orthoblast II; D020442:Poloxamer; D003094:Collagen