‘Smile Line’ is a virtual line made by the upper and lower lips that reveal the front teeth when smiling. With everything about smiles, the author of Smile Design, and Dr. Jung, president of the Magic Kiss dental clinic, let's learn about beautiful Smiles. When smiling, the lower lip is generally matched or parallel to the line connecting the upper tooth's cut. In practice, however, the ‘Smile Line’ can be seen as the term for the entire micro line linking the ‘Smile Line’ of the...