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Journal of Oral Science & Rehabilitation No. 1, 2017

G u i d e d b o n e r e g e n e r a t i o n i n p e r i i m p l a n t i t i s t h e r a p y Retrospective analysis of periimplantitis therapy of 158 implants Jörg-Ulf Wiegner,a Hermann Klinsmanna & Toralf Kömmlingb a Private practice, Saalfeld, Germany b Private practice, Gera, Germany C o r r e s p o n d i n g a u t h o r : Dr. Jörg-Ulf Wiegner Saalstraße 35 07318 Saalfeld Germany T: +49 3671 460933 wiegner@saalepraxis.de H o w t o c i t e t h i s a r t i c l e : Wiegner JU, Klinsmann H, Kömmling T. Retrospective analysis of periimplantitis therapy of 158 implants. J Oral Science Rehabilitation. 2017 Mar;3(1):32–42. Abstract O b j e c t i v e The objective of the retrospective analysis was to evaluate the eficacy of periimplantitis treatment up to a five-year observation period. M a t e r i a l s a n d m e t h o d s Patients treated for periimplantitis between 2009 and 2015 were includ- ed. Before therapy, the patients underwent professional tooth cleaning, defect class diagnosis and thorough mechanical cleaning of the implant surface. In the case of intraosseous defects, a deproteinized bovine bone mineral and a native bilayer collagen membrane were used according to the concept of guided bone regeneration. Retrospectively, plaque index, full-mouth bleeding on probing and probing pocket depth were analyzed before the therapy and at recall visits up to 56 months after therapy. R e s u l t s Out of 22,724 implants, 107 patients with 158 implants underwent periim- plantitis therapy and these had been in place for nine months to 15 years. Fifteen implants (9.49%) had to be extracted despite therapy. Most of the periimplantitis infections had occurred within five years after implantation (108 implants; 68.4%). In 45 implants (28.5%), therapy had included guided bone regeneration. Before therapy, bleeding on probing was 100%. Bleeding on probing was absent in 50.0% of implants at 12 months and in 73.1% of implants examined 49–56 months post-therapy. Probing pocket depth was reduced from 4.92 ± 1.93 mm before therapy to 2.67 ± 0.88 mm after 12 months and remained stable up to 56 months post-therapy (2.71 ± 0.30 mm). C o n c l u s i o n Using a treatment approach including a presurgical hygiene phase and considering the defect morphology, periimplantitis therapy was mostly successful in terms of implant survival (90.5%). K e y w o r d s Periimplantitis, oral hygiene, defect class, guided bone regeneration. 32 Volume 3 | Issue 1/2017 Journal of Oral Science & Rehabilitation

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