Dental Implants, Devices, and Materials

Many of the dental implants, devices, materials, and objects evaluated for ferromagnetic qualities exhibited measurable deflection forces (e.g., brace bands, brace wires, etc.) but only the ones with magnetically-activated components present potential problems for patients during MR procedures (also, see Magnetically-Activated Implants and Devices). The issues that exist for magnetically-activated dental implants include possible demagnetization of the magnetic components and the substantial artifacts that these magnets produce on MR imaging.

Dental implants, devices, and materials made from ferromagnetic materials tend to be held in place with sufficient counter-forces to prevent them from causing problems related to movement or dislodgement in association with MR systems operating 3-Tesla or less. The extent of MRI-related heating that occurs at 3-Tesla/128-MHz for these dental implants is unknown.

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