From: Evaluation of the maxillary midline, curve of the upper lip, smile line and tooth shape: a prospective study of 140 Caucasian patients
GENDER
Total
Female
Male
N
%
140
100,0%
70
Ovoid
88
62,9%
46
65,7%
42
60,0%
Square
32
22,9%
18
25,7%
14
20,0%
Triangular
20
14,3%
6
8,6%