I had a root canal in February and my jaw hinge was sobad it cracks and pops feels like my jaw is got tmj I wen t to dentist twice both dentists said I grind gave me night guard  pain is sort of gone now I have rash around my face and numbness around my chin and pain in gum line on that side still cant open mouth all the way what is wrong
Thanks for your query, you have multiple issues.basically you have TMJ disorder that can be treated by the night guard and proximal tablets.if the pain doesn't reduce then you have to take an MRI and can go for joint lavage with saline(amniocentesis)....the pain in the gum line could be because of the gum infection get yourself examined by your physician for deposits over the teeth and get it cleaned.the numbness could be because of pressure over the nerve by any tumor or cyst...consult your oral physician to rule out all these issues...I hope my answer will help you,take care