Instantly stream ADA Toothflix® 2. 0 videos anytime, anywhere. All you need is an internet connection! Dudley Visits the Dentist streaming video cartoon following Dudley the Dinosaur as he visits his dentist for a check-up. Run time 7:56. 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.