Porcelain teeth, if they are metal porcelain crowns, do head and neck MRI, generally have to remove the porcelain crowns to avoid radiating to artifacts that affect image quality, diagnosis. If it is a full porcelain crown, it will not affect the MRI and will not cause artifacts. If you are doing other parts of the examination, such as liver, biliary, pancreatic, spleen MRI, kidney MRI and pelvic MRI, porcelain teeth have no effect on the examination. Cranial examination and porcelain teeth will cause some artifacts, find a way to eliminate the artifacts, if it really can’t be eliminated, patients are not recommended to do MRI, but instead use CT, ultrasound Doppler examination to do the corresponding disease diagnosis. Therefore, if you want to do MRI in the near future, first do not recommend patients to do metal porcelain crowns in dentistry, there is really no way, may be through ultrasound Doppler, CT tomography, angiography to make up for the defects of MRI examination.