title: Craniofacial magnetic resonance imaging with a gold solder-filled chain-like wire fixed orthodontic retainer.
abstract: Magnetic resonance imaging (MRI) is one of the most powerful tools in diagnostic imaging. With the growing rates of orthodontic treatment, there are increasing chances of post-orthodontic treatment patients permanently wearing fixed retainers who shall undergo MRI examination.Three adolescent patients were referred for craniofacial MRI examination. All the patients had completed full orthodontic treatment with a retention protocol of permanently wearing bonded gold solder-filled wire fixed retainers. In the first 2 cases, the MRI examination was performed on a 1.5-T system and in the last case on a 3-T system.All the images achieved were of good quality and high resolution. No adverse effects were reported by the first 2 patients including no complaint of heat sensation or any other discomfort in the anterior teeth area. The third patient complained of a headache during the MRI examination.Radiologists and technicians may consider allowing performance of MRI examination using 1.5-T systems when a gold solder-filled wire fixed retainer is involved with no concern regarding the patient's health or the accuracy of the MRI scans.
authors.affiliation: Orthodontic and Craniofacial Department, School of Graduate Dentistry, Rambam Health Care, Haifa, Israel. aizenbud@ortho.co.il
authors.forename: Dror
authors.initials: D
authors.lastname: Aizenbud
authors.forename: Hagai
authors.initials: H
authors.lastname: Hazan-Molina
authors.forename: Shmuel
authors.initials: S
authors.lastname: Einy
authors.forename: Dorit
authors.initials: D
authors.lastname: Goldsher
mesh_terms: D000063:Accidents, Traffic; D000293:Adolescent; D006259:Craniocerebral Trauma / Q000175:diagnosis; D005260:Female; D006046:Gold; D006261:Headache / Q000175:diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D017253:Neurofibromatoses / Q000175:diagnosis; D018704:Orthodontic Retainers; D009969:Orthodontic Wires
chemical_list: D006046:Gold