I have worked in the field of dentistry for over 20 years. This documentary was absolutely fascinating to me. I felt strongly compelled to write a review because I find it misleading & quite sad when reviewers watch a program that holds absolutely no interest for them and they feel the need to give it, a very disappointing one star. Why do that? There are a lot of quacks in the field of dentistry, orthodontics, any specialty. This documentary really gives you a behind the curtain at everything that's involved in correcting occlusion and the aesthetics of having a beautiful smile. I know that personally if I had not had orthodontia, I would not be the person I am now smiling all the time friendly to everyone I wouldn't of had the opportunities that I've had to work front desk at an office and greet patients. A lot of people who have slightly crooked teeth have perfectly healthy teeth, and a great life. For others it's a game changer and really lowers their quality of enjoyment of life. I'd love to see more documentaries about the subject of dentistry, obviously.