Instantly stream ADA Toothflix® 2. 0 videos anytime, anywhere. All you need is an internet connection! TMD streaming video explains the causes of temporomandibular disorder and ways to help manage it. Run time 2:48. Your one-time payment gives you instant access to your selected video(s) from your ADA e-Bookshelf. View the list of all 26 videos and watch demo videos at ADA. org/toothflix.