Can tmd cause the whole row of lower teeth on one side to be painful? if disc is dislocated, can it go back to normal on its own?

Yes and Yes*: TMJ dysfunction can be the source of pain in teeth in the upper and lower jaw as well as other areas of the head and neck. A dislocated disc in the TMJ complex that is displaced can go back to its normal position. *Deformation of the disc and/ or damage to the ligaments holding the disc in position, and length of time the disc has been dislocated may factor in if the disc can return or not.