In vivo assessment of artefacts in MRI images caused by conventional twistflex and various fixed orthodontic CAD/CAM retainers.

Christoph J RoserTim HilgenfeldMuhammad Abdullah SaleemThomas RückschloßSabine HeilandMartin BendszusChristopher J LuxAlexander Juerchott

Published in: Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie (2023)

The present study on a single test person demonstrates that conventional stainless steel twistflex retainers can severely impair the diagnostic value in head/neck and dental MRI. By contrast, CoCr CAD/CAM retainers can cause artefacts which only slightly impair dental MRI but not head/neck MRI, whereas NiTi and Ti5 CAD/CAM might be fully compatible with both head/neck and dental MRI.

Keyphrases

contrast enhanced
magnetic resonance imaging
diffusion weighted imaging
oral health
magnetic resonance
computed tomography
deep learning
machine learning
convolutional neural network