My son had a severe brain injury six years ago. He has come a long way, however, he is in a nursing home, can't walk or talk, and only communicates if you ask him to write. He has been grinding his teeth for years now. His doctor gave him flexeril to help with relaxing but it is not working. We tried a mouth guard but he will not keep it in. The grinding is severe, I tried looking at his teeth, they do appear to be damaged. His dentist only suggested a mouth guard but it is not the answer. Is there anything else to try. Please, we need help.