Smile Design Smile, a person`s ability to express a range of emotions with the structure and movement of the teeth and lips, can often determine how well a person can function in society.It is a facial expression formed primarily by flexing the muscles at the sides of the mouth. It is one of the best beauty remedies.Yet too often our teeth deny us the benefits of a beautiful smile. An organized and systemic approach is required to evaluate, diagnose and resolve esthetic problems predictably.It is of prime importance that the final result is not dependent on only the looks alone.Our ultimate goal as a clinician is to achieve pleasing composition in the smile by creating an arrangement of various esthetic elements.