Fig. 4.

Assessment of clinical outcomes. A line connecting between the centers of the pupils is defined as the horizontal line, and that perpendicular to the horizontal line is defined as the vertical line. The point of contact between the nasal columella and the philtrum is marked as (A) and the mid point of the cupid bow is marked as (B). A line connecting between (A) and (B) is defined as the philtrum line. Symbol (*) indicates the mouth corner. A line connecting between these symbols is defined as a straight line. The mouth angle refers to the angle formed between the horizontal line and the mouth line. The philtrum angle refers to the angle formed between the vertical line and the philtrum line.