Porcelain teeth may interfere with leg MRIs, which can affect the results as well as the patient’s life and health. The full name of a porcelain crown is a metal porcelain crown, which means that the base of the crown is made of metal. Metal can cause artifacts during an MRI that can affect the results, and the metal can be displaced by the magnetic force, which can seriously affect the patient’s life and health. When performing a leg MRI, metal porcelain teeth in the mouth may have a greater impact, but for the smoothness of all future examinations, it is recommended that porcelain crowns be replaced with all-ceramic or pure titanium crowns, which will not have an impact on the MRI and are more biocompatible.