title: Placement of implants in the severely atrophic posterior maxilla using localized management of the sinus floor: a preliminary study.
abstract: OBJECTIVE
  This retrospective study investigated whether or not implants can be placed successfully without sinus grafts in atrophic posterior maxillary ridges with < or = 4 mm of bone utilizing the localized management of the sinus floor technique as described by Bruschi and coworkers.
  
  
  METHODS
  Fifty-eight implants were placed in 34 consecutive patients with an average vertical height of 2.87 mm of residual bone under the sinus. The implants were placed at the time the sinus membrane was elevated.
  
  
  RESULTS
  The sinus was "raised" an average of 9.12 mm without benefit of bone grafts or membranes. The success rate after 22 months of loading was 91.4%.
  
  
  CONCLUSIONS
  The localized management of the sinus floor (LMSF) technique permits osseointegration of titanium implants by an endosteal-periosteal continuum that is unhindered by the need of graft material to resorb.
  
  
  CONCLUSIONS
  This preliminary study demonstrated that it is possible to place implants in an atrophic alveolar ridge with < or = 4 mm of bone without the need for a traditional sinus graft.
authors.affiliation: Park Avenue Periodontal Associates, PC, New York, New York 10021, USA. parkaveperio@earthlink.net
authors.forename: Alan A
authors.initials: AA
authors.lastname: Winter
authors.forename: Alan S
authors.initials: AS
authors.lastname: Pollack
authors.forename: Ronald B
authors.initials: RB
authors.lastname: Odrich
mesh_terms: D000328:Adult; D000368:Aged; D001284:Atrophy; D003442:Crowns; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla / Q000473:pathology / Q000601:surgery*; D008443:Maxillary Sinus / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D009092:Mucous Membrane / Q000473:pathology; D016348:Osseointegration; D010027:Osteotomy; D012189:Retrospective Studies; D016019:Survival Analysis; D014025:Titanium; D016896:Treatment Outcome
chemical_list: D015921:Dental Implants; D014025:Titanium