This study looked at whether jaw exercises (the Rocabado exercise programme) work better when delivered through supervised online video sessions than when done at home with written instructions alone, in adults who have jaw-joint pain (temporomandibular disorder) together with teeth grinding (bruxism). Thirty adults were randomly placed into one of two groups. Both groups were taught the same exercises and asked to do them twice a day for four weeks. One group also took part in supervised video sessions three times a week, where a physiotherapist watched their exercises and gave feedback; the other group used printed exercise leaflets with weekly text-message reminders. The researchers measured jaw pain, how wide participants could open their mouth, jaw movement, stress, sleep quality and oral habits before treatment, after two weeks and after four weeks, to see which approach gave better results.