My first MRI I confirmed I have no metal on my body to the technician, but by the time I was inside I suddenly remembered I have metal fillings. I was so stressed by the time the machine turned on, but yeah no problems at all
True, but the RF coils do get turned on & off. Heating of non-magnetic metal from the radio waves used for scanning is another concern, not just magnetic force.
Apparently it's not an issue, even if you do have them.