Table 2.

Vertical distances (mm) and ratios of lingula shapes in the total sides .

	Li-SN		Li-IB		SN-IB		Li-SN/SN-IB
	Mean	SD	Mean	SD	Mean	SD	Ratio
Shape
Triangular (n = 44)	19.03	3.54	31.80	3.51	50.83	4.67	0.373
Truncated (n = 59)	19.97	2.90	30.76	4.07	50.73	4.88	0.394
Nodular (n = 68)	19.76	3.17	31.15	3.88	50.92	5.05	0.388
Assimilated (n = 9)	18.61	3.23	34.39	4.25	53.00	6.04	0.351
Total (n = 180)	19.59	3.19	31.34	3.92	50.94	4.94	0.385
Intershape comparison
p vlaue	0.357		0.058		0.641		0.026*
	NS		NS		NS		2 > 1,4; 3 > 4

n, number of side; Li, lingula; SN, sigmoid notch; IB, inferior border of ramus.

Lingula shape: 1, Triangular; 2, Truncated; 3, Nodular; 4, Assimilated.

^*Significant, p < 0.05; NS: Not Significant.