title: Treatment of Postextraction Sites With Allograft-Stabilized Dental Implants: A Clinical Case Series.
abstract: OBJECTIVE
  Additional grafting procedures for the treatment of extremely atrophic jaws may be demanding, expensive, and sometimes require long time and multiple surgical sessions, which may reduce patient's acceptance and quality of life. This study evaluated the outcomes of 10 patients with extensive alveolar bone defects in the posterior jaws, treated in a single surgical session with grafting and implants.
  
  
  METHODS
  Ten consecutive patients were treated within 3 months of extraction. After ridge exposure, implants were positioned in 4-wall defects without contact with pristine bone, and mineralized particulate allograft packed around to stabilize them. Sites were covered with resorbable membranes and soft tissues were sutured tension-free. Five months later, implants were restored in centric occlusion.
  
  
  RESULTS
  At uncovering, newly formed bone filled all defects and all implants resisted at 30 Ncm of reverse torque. No complication was recorded throughout the study; survival rate was 100% for both implants and grafts. After 24 months of follow-up, mean periimplant bone level change was 0.15 ± 0.53 mm and mean bone gain at the defect site was 11.62 ± 1.04 mm.
  
  
  CONCLUSIONS
  Rehabilitation of wide postextraction defects may achieve successful outcomes using allograft and a special implant design, even in the absence of optimal primary stability.
authors: *Private Practice, Periodontology, Dental Implants and Aesthetic Dentistry, Bolzano, Italy. †Private Practice, Dental Medicine and Oral Implantology, Milan, Italy. ‡Associate Professor, Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milan, Italy. §Head of Section of Oral Physiology, Dental Clinic, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy.
authors: Stefano
authors: S
authors: Bianconi
authors: Paolo
authors: P
authors: Bozzoli
authors: Massimo
authors: M
authors: Del Fabbro
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016025:Bone Transplantation / Q000379:methods*; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D006801:Humans; D008875:Middle Aged; D020390:Tooth Socket / Q000601:surgery*; D016896:Treatment Outcome
chemical_list: D015921:Dental Implants