I haven't seen anyone say that they have RSD of any part of their mouths, but I have been having the same symptoms on my tongue like the first symptoms on my leg..my RSD has been spreading consistently no matter what I do..

My tongue is numb and tingly on the right side. It doesn't affect my speech, but my dentist is very concerned. I have a neuro check-up in a few weeks...wait until he hears this one!