Morphological Study of the Lingula in Adult Human Mandibles of Brazilians Individuals and Clinical Implications
Table 1
Average height of the lingula (in millimeters) and average of the following measurements: mandibular notch to lingula (MN-L); anterior margin of ramus of mandible to lingula (A-L); posterior margin of ramus of mandible to lingula (P-L); mandibular base to lingula (MB-L) (in millimeters), for Amerindian and Caucasian males and females, value and standard deviation (SD).
Amerindian male
Caucasian male
Amerindian female
Caucasian female
Total mean
Height
Truncated
8.18
8.82
7.76
7.23
8.29
Triangular
8.41
8.44
7.47
6.76
SD ± 1.99
Nodular
9.33
9.19
8.01
6.54
Assimilated
—
9.38
—
—
Mean
8.50
8.89
7.78
7.00
value
0.04
0.48
0.79
—
SD
±1.79
±2.06
±1.87
±2.12
MN-L
Truncated
17.59
16.75
16.75
16.81
17.29
Triangular
18.36
17.4
16.26
14.96
SD ± 2.57
Nodular
17.95
17.50
16.12
16.38
Assimilated
—
21.08
—
—
Mean
17.90
17.35
16.53
16.43
value
0.45
0.56
0.95
—
SD
±2.70
±2.49
±2.50
±1.88
A-L
Truncated
18.00
17.8
18.39
17.34
17.76
Triangular
19.66
18.35
18.59
16.69
SD ± 2.69
Nodular
16.52
16.98
16.39
13.79
Assimilated
—
12.77
—
—
Mean
18.18
17.47
17.97
16.57
value
<0.0001
0.29
0.005
—
SD
±2.46
±2.96
±2.40
±2.88
P-L
Truncated
16.10
15.75
14.76
13.63
15.28
Triangular
15.68
14.44
14.04
11.17
SD ± 2.31
Nodular
16.80
15.86
14.83
12.86
Assimilated
—
14.17
—
—
Mean
16.13
15.41
14.67
13.22
value
0.23
0.05
0.56
—
SD
±2.27
±2.10
±2.13
±1.85
MB-L
Truncated
32.90
36.16
32.58
30.77
33.30
Triangular
34.80
35.80
31.38
29
SD ± 4.14
Nodular
32.87
35.03
30.68
28
Assimilated
—
31.01
—
—
Mean
33.47
35.46
31.97
30.16
value
0.07
0.51
0.33
—
SD
±3.79
±3.48
±4.72
±2.57
(—) could not be calculated; statistically significant difference. The value was found on analysis of the shapes of lingula in each group studied.
