It’s an awesome app, really. Such detail, beautifully made and easy to use. However, I have two small complaints. There should be an option to change the system in which the teeth are named. I want to be able to use the European system. And also, in the quiz, the teeth are always in the right direction, so you can immediately tell if it belongs to the upper or lower jaw, it makes it too easy. Other than that, it’s amazing!