In vitro analysis shows MRI does not affect thermal stability or microleakage in brackets, suggesting retention during scans.
Exposure to a 1.5 T MRI magnetic field does not significantly affect microleakage or temperature changes in stainless steel or titanium brackets. These findings suggest that fixed orthodontic appliances do not need to be removed prior to MRI examinations, provided artifacts or image interference are not a concern.
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Paknahad et al. (2025) studied this question.
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