Help required for this case

Well, go for a MRI in this case as it most probably looks like a case involving the articular disc of the right TMJ….maybe disc dislocation with reduction. If u want to go into details consult okeson's textbook on TMJ abnormalities. Mostly these cases require hot sponging alongwith some kind of intraoral splint that positions the mandible slightly forward. Consult the text book for more details.