The Effect of Peri-implant Surgery and Chair-side Supportive Post Surgical Peri-implant Therapy

Little is known about the effect of chair-side maintenance of dental implants after peri-implantitits surgery. Traditionally, the maintenance has been performed by titanium curettes to remove microbiological deposits from the submucosal area.

The Labrida biodegradable brush is a novel debridement device intended for use on dental implants. The concept of using a biodegradable material is related to the suggested problems with leaving remnants on the treated implant surface which would be negative from a bone regenerative aspect. The use of a flexible brush relates to the access problems when treating dental implants both related to the threads as well as due to the prosthetic supra construction hindering access for debridement with regular instruments developed for teeth. The material used in the brush will be Chitosan which is a natural polysaccharide, chitosan (poly-N-acetyl glucosaminoglycan), which is a nontoxic and bioabsorbable (REK-approval 2012/791 polymer).

H0: It is possible to maintain peri-implant health after surgical peri-implantitis treatment. There is no short- or long term clinical or radiographical differences between patients surgically treated for peri-implantitis maintained by the use of titanium cyrettes or with the Labrida brush in chair-side supportive care

Inclusion criteria

Overt peri-implantitis presenting at least one implant with;

• radiographic bone loss ≥ 2.0 mm
• bleeding on probing (BoP)

Main exclusion criteria:

• radiotherapy
• chemotherapy
• systemic long-term corticosteroid treatment
• pregnancy or nursing
• anatomical abnormalities
• history of previous treatment of peri-implantitis within 6 months after the screening
• American Society of Anesthesiologists (ASA) classification for assessing the fitness of patients before surgery > 2