Whether or not a knee MRI can be done on metal teeth depends on the material of the metal teeth, if it is made of pure gold or silver, it can usually be done; however, if it belongs to cobalt chromium alloy, as well as other alloys, it is usually not recommended. The metal material also has to be divided into many kinds, if it is pure gold, pure silver material, then in the process of wearing metal teeth, usually can do MRI, and will not cause interference to the results of the examination. However, most of the metal teeth made by most people at present are mostly cobalt chromium alloy or other alloys, and this type of metal teeth is generally not recommended to do magnetic resonance, so as not to cause interference with the magnetic field, which will easily affect the diagnostic results. If you are currently wearing metal teeth, you need to consult your doctor before having an MRI and analyze whether you can have an MRI under the guidance of your medical professional. In cases where it cannot be done, other means of diagnosis can be utilized, such as enhanced CT.