Stopped: Study was terminated due to the difficulty in identifying suitable participants.
In recent years, dental implants have gained popularity as the treatment choice for replacement of missing teeth. With this, one of the late biological complications that arise is peri-implantitis. Based on a consensus conference in 2008, peri-implantitis was found in 28% and ≥ 56% of subjects and in 12% and 43% of implant sites (Zitzmann \& Berglundh 2008). Detection of peri-implantitis is currently based on clinical parameters like probing depths and radiographic findings of bone loss. There is however no study that assess the variability of clinical probing and radiographic reading in relation to the true outline of the peri-implantitis lesion. The present study will measure variability of clinical probing and radiographs in relation to the true outline of the peri-implantitis lesion, as well as assess the use of 2 different bone substitutes in regenerating the lesions with a barrier membrane.
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The accuracy of clinical probing pocket depths to the true outline in peri-implantitis lesions
Timeframe: 6 months after GBR
The accuracy of peri-apical radiographic readings to the true outline in peri-implantitis lesions
Timeframe: 6 months after GBR
Absolute change from baseline of probing pocket depth (PPD in mm) and the degree of bone fill at re-entry (6 months)
Timeframe: 6 months after GBR