When I was in massage therapy school in 2010, we learned a technique called Intraoral massage aka "inside the mouth". (Using gloves of course!) It's great for TMJD pain, teeth grinders or clenchers, and headaches. We performed it one side at a time, going very slow, searching to feel the tight muscles, trigger points, sore spots and reactions of the client. Now it's trending as "Buccal" massage. I pronounce that B-YOU-cal but some say it like buckle. Buccal is a medical term