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Regenerative Treatment of Peri‐Implantitis Bone Defects with a Combination of Autologous Bone and a Demineralized Xenogenic Bone Graft: A Series of 36 Defects
Author(s) -
Wiltfang Jörg,
Zernial Oliver,
Behrens Eleonore,
Schlegel Andreas,
Warnke Patrick H.,
Becker Stephan T.
Publication year - 2012
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/j.1708-8208.2009.00264.x
Subject(s) - medicine , peri implantitis , dentistry , reduction (mathematics) , granulation tissue , implant , surgery , wound healing , geometry , mathematics
Aim: As the treatment of peri‐implantitis–induced bone loss is still a problem, we studied the regenerative treatment of these defects with a mix of autologous bone and a new type of bone graft substitute (demineralized xenogenic bone graft) including growth factors. Material and Methods: In a prospective manner, 36 cases of peri‐implantitis–induced bone loss (depth >4 mm) in 22 patients were followed for 1 year. After resolving the acute infection by local rinsing, granulation tissue was removed. The implants were decontaminated with etching gel and the defects were filled with autologous bone mixed 1:1 with a xenogenic bone graft. The prosthetic reconstructions did not have to be removed. Values of probing depths as well as bone defects were analyzed. Results: The radiologic evaluation of the bone defects after regenerative treatment revealed a mean reduction of 3.5 mm comparing the values from 5.1 mm prior to surgery to 1.6 mm 1 year after treatment. Average reduction of the probing depth was 4 mm. The remaining bone defects were larger than 3 mm in 4 out of 36 implants 1 year after treatment. Probing depths of more than 4 mm were present in seven implants. Conclusion: Within the limits of the study, we conclude that for bone defects larger than 4 mm in case of peri‐implantitis, this single surgical intervention provided a reliable method to reduce bone defects.