title: Submerged healing following surgical treatment of peri-implantitis: a case series.
abstract: OBJECTIVE
  The aim was to study a regenerative surgical treatment modality for peri-implantitis employing submerged healing.
  
  
  METHODS
  Twelve patients, having a minimum of one osseointegrated implant with peri-implantitis, with a progressive loss of >or=3 threads (1.8 mm) following the first year of healing were involved in the study. After surgical exposure of the defect, granulomatous tissue was removed and the implant surface was treated using 3% hydrogen peroxide. The bone defects were filled with a bone substitute (Algipore), a resorbable membrane (Osseoquest) was placed over the grafted defect and a cover screw was connected to the fixture. The implant was then covered by flaps and submerged healing was allowed for 6 months. After 6 months the abutment was re-connected to the supra-structure.
  
  
  RESULTS
  A 1-year follow-up demonstrated clinical and radiographic improvements. Probing depth was reduced by 4.2 mm and a mean defect fill of 2.3 mm was obtained.
  
  
  CONCLUSIONS
  Treatment of peri-implant defects using a bone graft substitute combined with a resorbable membrane and submerged healing results in defect fill and clinical healthier situations.
authors.affiliation: Department of Health Sciences, Kristianstad University, Kristianstad, Sweden.
authors.forename: Ann-Marie
authors.initials: AM
authors.lastname: Roos-Jansåker
authors.forename: Helena
authors.initials: H
authors.lastname: Renvert
authors.forename: Christel
authors.initials: C
authors.lastname: Lindahl
authors.forename: Stefan
authors.initials: S
authors.lastname: Renvert
mesh_terms: D020341:Absorbable Implants; D000368:Aged; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D018786:Bone Substitutes / Q000627:therapeutic use; D016025:Bone Transplantation / Q000379:methods*; D015921:Dental Implants / Q000009:adverse effects*; D003774:Dental Plaque Index; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008336:Mandibular Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery; D008439:Maxillary Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery; D008875:Middle Aged; D010512:Periodontal Index; D010518:Periodontitis / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography; D012907:Smoking / Q000009:adverse effects
chemical_list: D018786:Bone Substitutes; D015921:Dental Implants