title: Reentry After Combined Surgical Resective and Regenerative Therapy of Advanced Peri-implantitis: A Retrospective Analysis of Five Cases.
abstract: This retrospective analysis of five reentry cases reports on the clinical defect healing after combined surgical resective/regenerative therapy of advanced peri-implantitis. A second surgery was necessary because of a clinical need for additional treatment procedures at the respective implant sites after healing periods of 8 months to 6.5 years. All patients underwent the same standardized procedure including access flap surgery, implantoplasty at bucally and supracrestally (> 1 mm) exposed implant parts, surface decontamination, and augmentation of the intrabony (Class I) components using a natural bone mineral and a native collagen membrane. Clinical defect resolution (DR) of the Class I component was evaluated. In two patients, clinical and radiographic signs suggested a reinfection (ie, case 3-mesial aspect; case 5-mesial and distal aspects). Mean DR values ± standard deviation were 59.4% ± 47.59% (95% confidence interval [CI], 0.31%-118.49%). When infected aspects were excluded, resulting values were 85.76% ± 4.86% (95% CI, 78.02%-93.50%). The presented surgical procedure was associated with a clinically important DR in advanced peri-implantitis defects.
authors.forename: Frank
authors.initials: F
authors.lastname: Schwarz
authors.forename: Gordon
authors.initials: G
authors.lastname: John
authors.forename: Jürgen
authors.initials: J
authors.lastname: Becker
mesh_terms: D000540:Alveolar Ridge Augmentation / Q000379:methods; D003094:Collagen / Q000627:therapeutic use; D003666:Decontamination; D016557:Guided Tissue Regeneration, Periodontal / Q000379:methods*; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000601:surgery; D057873:Peri-Implantitis / Q000601:surgery*; D012008:Recurrence; D012086:Reoperation; D012189:Retrospective Studies; D013524:Surgical Flaps; D014945:Wound Healing
chemical_list: D003094:Collagen