Beauty is a subjective concept that depends on many factors, such as ideology, age, culture or religion, ethnicity or media, among others. Even so, the Egyptians introduced the study of facial beauty based on horizontal and vertical reference lines, which determine the symmetry and harmony of a face.
Thus, analyzing the proportions of the face is very important to fix a mouth, both with dental veneers and crowns, since these reference lines allow to have a certain space for the mouth to fit well with the rest of the face from a dental aesthetic point of view.
Proportions in facial beauty
To analyze the patient’s face from a frontal point of view, three horizontal lines are drawn:
- Interpupillary: passes through the center of the pupils and is the horizontal reference line, i.e., the other horizontal lines must be parallel to it.
- Intercommissural: passes through the corners of the lips.
- Interorbital: it goes through the eyebrows.
From the vertical point of view, the median line passes through the glabella (space between the eyebrows), the nose, the philtrum (space between the upper lip and the nose) and the tip of the chin. Dental specialists affirm that the more centered and perpendicular it is with the interpupillary line, the greater the proportion in the face.
Proportion in a smile
To achieve a pleasant harmony in the patient’s smile, the most important thing is that there is parallelism between the bite plane, the gum contour and the interpupillary line.
Another important factor in achieving a beautiful smile that is proportionate to the rest of the face is that the lower third of the face, i.e. the mouth, is divided into three equal parts:
- Upper lip
- Lower lip
- Chin
In addition, the lower third should be the same size as the other two thirds of the face to make it more proportionate.