Mosa, Fadi (2021) Het verschil tussen klinische en radiografische metingen en classificaties van botdefecten als gevolg van peri-implantitis. thesis, Dentistry.
Full text available on request.Abstract
Introduction. Intra-oral radiographs underestimate periodontal bone lesions according to earlier studies. Similar research about peri-implant related bone defects is insufficient. The aim of this study is to determine the accuracy of radiographs to assess a prognosis or required treatment. The main question in this study is: ‘What is the difference between clinical and radiographic bone loss and classification of peri-implant bone defects?’ In addition, examining the most accurate classification system and the inter observer reliability is part of this study. Material and methods. Clinical bone loss was measured during surgery at the mesial and distal site of implants affected by peri-implantitis. These measurements were compared with radiographic measurements. The bone defects were additionally classified. Two different classification systems were applied (Schwarz and Renvert) for clinical (based on intra-oral photographs) and radiographic assessment. Three different reviewers completed the measurements and classifications. Results. The results showed a mean clinical bone loss of 4.86 mm at the mesial and distal site, while the mean radiographic bone loss was 4.11 mm at the mesial site and 4.15 mm at the distal site. Applying the Renvert classification system provided 34% correct classifications of the bone defects, while the Schwarz classification system provided 15% correct classifications. The kappa coefficients (κ) of both measuring moments (clinical versus radiographical) and classification systems were around 0.2-0.35. Conclusions. Radiographs of peri-implant bone defects underestimate the clinical bone loss. Furthermore, radiographic assessment of bone defects leads in majority to incorrect classifications and poor agreement between the reviewers. Additional research is needed to evaluate alternative ways to measure and assess bone defects prior to a surgical procedure.
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | de Waal, Dr. Y.C.M. |
| Faculty: | Medical Sciences |
| Date Deposited: | 03 May 2023 11:17 |
| Last Modified: | 03 May 2023 11:17 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3504 |
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