As a dentist, every time when you will take the clinical shots, you will need artificial light, which comes from the flush. We have different types of the flushes. It can be single, it can be ring flush, it can be dual flush. We will go through the differences in between them. And also, we will be focused on the practical demonstration how the light and direction of this light will illuminate the scene, will illuminate the teeth or face, and we will show you in details which kind of setting will be better in different conditions. So it's important to understand how the light will affect the final result.