Cone-Beam Computed Tomography Evaluation of Mental Foramen Variations: A Preliminary Study

Table 2

The frequency (%) of the opening direction of mental foramen for gender and mean age in the right and left sides.

Variables	Superior	Superior-posterior	Labial	Mesial	Posterior	value
R
Male	23.8%	70.2%	3.6%	0%	2.4%	0.28
Female	30.2%	59.4%	6.3%	3.1%	1%
L
Male	23.8%	70.2%	2.4%	1.2%	2.4%	0.15
Female	36.5%	55.2%	2.1%	5.2%	1%
R
Mean age	53.14 (SD ± 13.8)	47.22 (SD ± 13)	47.33 (SD ± 18.7)	48 (SD ± 9.53)	30.33 (SD ± 17)	0.02
L
Mean age	50.73 (SD ± 14.5)	47.63 (SD = 13.5)	53 (SD ± 5.7)	52.50 (SD ± 8.8)	30.33 (SD ± 17.2)	0.09