I had a brain MRI in April of this year, everything was normal, the doc did this because of the facial tingling that I have on the left side of my face. I do have jaw stiffness, and ear
pain on that side, but no cracking or popping noise, I don't know if I grind my teeth at night or not, I know that my husband and son do all the time, I probably don't get enough sleep to grind my teeth, from them keeping me up. LOL!!!