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Surgical Treatment of Peri-implantitis: Significance of Bone Loss for Treatment Outcome
Umeå University, Faculty of Medicine, Department of Odontology.
Umeå University, Faculty of Medicine, Department of Odontology.
2015 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The prevalence of peri-implantitis varies between 1 and 47 % on a patient level. Treatment success of as low as 45.3 % has been noted after peri-implant surgery, and it has been suggested that the severity of peri-implant disease may affect disease progression and treatment outcome in peri-implantitis.  The objective of the present study was to examine whether the extent of peri-implant bone loss before surgery impacts treatment outcome after surgical treatment of peri-implantitis. 

The study was performed retrospectively. 30 patients, with a total of 77 implants, previously surgically treated for peri-implantitis were included. The treated implants were divided into groups of different initial disease severity according to their radiographic bone level pre-surgery, i.e. implants demonstrating bone loss < 1/3 of the implant length and bone loss > 1/3 of the implant length. Reductions in probing pocket depth (PPD) and bleeding/purulence on probing (BOP/PUS)  6 months after surgery were analyzed.

Significant reductions in both PPD and BOP/PUS were shown in the group with less pronounced bone loss pre-surgery. In the group with more pronounced bone loss the reduction in BOP/PUS was significant although not the reduction in PPD.

Initial severity of peri-implantitis in terms of pre-surgical bone loss seems to impact treatment outcome; implants with less advanced bone loss before surgery presented better treatment result than more severe cases. The results may be indicative of future treatment planning, although they need to be confirmed by further studies.

Place, publisher, year, edition, pages
2015.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:umu:diva-113633OAI: oai:DiVA.org:umu-113633DiVA: diva2:886217
Educational program
Dentistry Programme
Supervisors
Examiners
Available from: 2015-12-22 Created: 2015-12-22 Last updated: 2016-02-08Bibliographically approved

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