title: Treatment of the failing implant: case reports.
abstract: Three case reports of treatment of the failing implant are presented. The implants were immobile but had lost a significant amount of osseous support. The cause of failure was determined to be a combination of bacterial and occlusal traumatogenic insult. The defects were debrided and the implant surface was detoxified with tetracycline. Decalcified freeze-dried bone allograft was implanted in the osseous defects and covered with expanded polytetrafluoroethylene material in accordance with principles of guided tissue regeneration. The barrier membrane was removed 6 to 8 weeks after placement. Eight months to 1 year posttreatment, all sites demonstrated a substantial reduction in probing depth, a gain in clinical attachment, and bone fill of the defects adjacent to the implant.
authors.affiliation: Department of Periodontics, University of Texas-Health Science Center, San Antonio, 78284-7894, USA.
authors.forename: J T
authors.initials: JT
authors.lastname: Mellonig
authors.forename: G
authors.initials: G
authors.lastname: Griffiths
authors.forename: E
authors.initials: E
authors.lastname: Mathys
authors.forename: J
authors.initials: J
authors.lastname: Spitznagel
mesh_terms: D000368:Aged; D016301:Alveolar Bone Loss / Q000209:etiology / Q000601:surgery*; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D016025:Bone Transplantation / Q000379:methods; D015921:Dental Implants / Q000009:adverse effects*; D003769:Dental Occlusion, Traumatic / Q000150:complications; D005260:Female; D006097:Granulation Tissue; D016557:Guided Tissue Regeneration, Periodontal; D006801:Humans; D008297:Male; D008875:Middle Aged; D010518:Periodontitis / Q000209:etiology / Q000601:surgery*; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections / Q000150:complications; D013752:Tetracycline / Q000627:therapeutic use; D014945:Wound Healing
chemical_list: D000900:Anti-Bacterial Agents; D015921:Dental Implants; D013752:Tetracycline