In vivo assessment of artefacts in MRI images caused by conventional twistflex and various fixed orthodontic CAD/CAM retainers. - Roser CJ; Hilgenfeld T; Saleem MA; Rückschloß T; Heiland S; Bendszus M; Lux CJ; Juerchott A (Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 2024)