Thank you very much for a nice question. I believe that 316L stainless steel has sufficient corrosion resistance and is suitable for dental use when it is not in the environment with galvanic corrosion of dissimilar metals. The 316L stainless steel is usually used as biomedical stainless steel in vivo without the galvanic corrosion. Therefore, it is difficult to say that it is completely suitable to use for dental magnetic attachments which are assumed to contact with dissimilar metals. For instance, there is an electrochemical disadvantage that the pitting potential of 316L is relatively near to the corrosion potential when 316L is in contact with precious alloys used for root caps. As the pitting potential of 316L hardly reduces under the corrosion potential in contact with the precious alloys, however, there is few problem practically in the galvanic corrosion.