title: [Clinical application of alveolar ridge augment of posterior mandible using modified sandwich technique with immediate implantations].
abstract: OBJECTIVE
  To evaluate the clinical values of alveolar ridge augment of atrophic posterior mandible using modified sandwich technique with immediate implantations,
  
  
  METHODS
  Three patients with atrophic posterior mandible were enrolled in this study. A sandwich osteotomy was performed using a piezosurgery device, and 2 submerged implants were placed in approximal locations simultaneously to support and stabilize the osteotomy segments. Some xenografts were inserted into sandwich region and a GBR membrane was applied during operations. After 6 months, definitive prostheses were completed.
  
  
  RESULTS
  No dehiscence of the mucosa was observed in all patients. 2 patients' swelling gradually disappeared after a therapy with antibiotics and dexamethasone for 3 days. Six months later, newly formed bones were observed near the osteotomized segments, and peri-implant area showed osseointegration. The mean height of augmentation was about 5mm.
  
  
  CONCLUSIONS
  Augmentation of alveolar ridge with immediate implantations using modified sandwich technique is applicable.
authors.affiliation: Department of Dentistry, Affiliated Nanshan Hospital of Guangdong Medical College, Guangdong Province, China. zhdentist@yahoo.com.cn
authors.forename: Zhao-zhong
authors.initials: ZZ
authors.lastname: Guo
authors.forename: Heng
authors.initials: H
authors.lastname: Zhang
authors.forename: Ting-ting
authors.initials: TT
authors.lastname: Zhou
authors.forename: Xu
authors.initials: X
authors.lastname: Yang
authors.forename: Xue
authors.initials: X
authors.lastname: Liu
authors.forename: Jia-bao
authors.initials: JB
authors.lastname: Wu
mesh_terms: D000539:Alveolar Process; D000540:Alveolar Ridge Augmentation; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D006801:Humans; D008334:Mandible; D010027:Osteotomy
chemical_list: D015921:Dental Implants