Cone Beam Computed Tomographic Analyses of the Position and Course of the Mandibular Canal: Relevance to the Sagittal Split Ramus Osteotomy

Table 2

(a) The breakdown of age-group and number of subjects; patients from 18 to 25 years of age; number of males: 52, females: 77. (b) The breakdown of age-group and number of subjects; patients from 26 to 32 years of age; number of males: 40, females: 71. (c) The breakdown of age-group and number of subjects; patients from 33 to 40 years of age; number of males: 29, females: 21.

(a)

Position		Side	Gender	Minimum	Maximum	Mean	SD	𝑃 value
P1	B	Right	0	4.0	9.5	6.92	1.55	0.257
			1	3.5	11.4	6.58	1.75
		Left	0	3.3	9.9	6.78	1.60	0.489
			1	3.3	10.1	6.59	1.51
	L	Right	0	0.9	5.0	1.94	1.01	0.056
			1	1.1	3.8	2.22	0.67
		Left	0	1.0	5.8	2.21	1.00	0.469
			1	1.1	5.3	2.33	0.77
	I	Right	0	3.3	13	7.32	1.96	0.000*
			1	3.1	9.4	6.26	1.34
		Left	0	4.8	10.1	7.39	1.35	0.000*
			1	1.4	11.4	5.97	1.65
	S	Right	0	2.4	4.7	3.45	0.54	0.063
			1	1.8	5.0	3.26	0.60
		Left	0	2.4	4.8	3.49	0.58	0.370
			1	2.4	4.8	3.40	0.53
	CB	Right	0	11.3	24.0	16.66	2.93	0.000*
			1	11.0	19.7	14.82	1.93
		Left	0	13.0	23.8	16.76	2.52	0.000*
			1	8.6	19.6	14.39	1.86
P2	B	Right	0	2.7	9.1	6.44	1.54	0.104
			1	1.5	12.8	5.93	1.88
		Left	0	3.6	9.4	6.02	1.54	0.433
			1	2.8	10.0	5.80	1.63
	L	Right	0	0.8	4.1	2.14	0.80	0.125
			1	0.8	4.7	2.38	0.92
		Left	0	1.0	5.1	2.65	1.19	0.481
			1	1.3	5.1	2.52	0.88
	I	Right	0	3.0	14.5	8.36	2.18	0.000*
			1	2.8	11.6	7.09	1.53
		Left	0	5.5	11.6	8.43	1.49	0.000*
			1	2.9	14.0	6.93	1.93
	S	Right	0	2.6	4.1	3.23	0.42	0.306
			1	2.0	4.9	3.13	0.57
		Left	0	2.6	4.2	3.29	0.41	0.099
			1	2.1	4.7	3.14	0.54
	CB	Right	0	8.3	19.3	12.06	2.36	0.040*
			1	6.2	14.9	11.31	1.77
		Left	0	7.7	16.6	12.78	2.42	0.000*
			1	6.1	15.6	10.50	2.09
P3	B	Right	0	1.6	7.0	4.35	1.28	0.484
			1	1.3	9.5	4.15	1.78
		Left	0	1.3	9.3	3.80	1.81	0.326
			1	1.3	7.5	4.08	1.43
	L	Right	0	0.7	5.6	2.61	1.22	0.523
			1	0.6	5.6	2.46	1.30
		Left	0	0.9	7.3	3.19	1.58	0.042*
			1	0.8	6.0	2.66	1.34
	I	Right	0	6.6	18.2	12.21	2.53	0.000*
			1	5.4	16.8	10.68	2.06
		Left	0	4.4	16.0	12.11	2.38	0.000*
			1	5.5	17.0	10.42	2.33
	S	Right	0	2.3	4.7	2.98	0.64	0.484
			1	1.5	5.9	2.89	0.81
		Left	0	1.9	4.3	2.87	0.56	0.521
			1	1.1	5.4	2.78	0.83
	CB	Right	0	6.9	13.5	10.41	1.77	0.065
			1	5.1	13.3	9.79	1.92
		Left	0	7.3	18.5	10.65	1.91	0.000*
			1	5.4	15.3	9.39	1.86

(b)

Position		Side	Gender	Minimum	Maximum	Mean	SD	𝑃 value
P1	B	Right	0	3.6	8.0	6.07	1.08	0.976
			1	3.5	9.8	6.07	1.53
		Left	0	2.2	9.9	5.93	2.18	0.795
			1	3.5	10.8	6.05	1.60
	L	Right	0	0.8	4.8	1.86	0.77	0.070
			1	1.0	4.0	2.21	0.81
		Left	0	0.6	3.3	1.60	0.70	0.000*
			1	1.1	7.6	2.60	1.27
	I	Right	0	5.3	10.2	7.25	1.11	0.232
			1	3.3	12.1	6.84	1.77
		Left	0	4.9	11.1	7.35	1.25	0.016*
			1	1.7	9.5	6.42	1.92
	S	Right	0	2.4	4.7	3.43	0.60	0.683
			1	2.6	5.2	3.38	0.50
		Left	0	2.8	5.3	3.76	0.63	0.009*
			1	1.7	4.5	3.36	0.61
	CB	Right	0	11.1	24.0	16.06	3.22	0.219
			1	11.3	19.7	15.22	2.25
		Left	0	13.1	23.8	15.90	2.91	0.027*
			1	11.2	19.1	14.49	2.13
P2	B	Right	0	2.8	9.1	5.35	1.48	0.575
			1	3.0	8.7	5.16	1.45
		Left	0	2.6	8.6	5.21	1.55	0.258
			1	3.0	8.9	5.63	1.59
	L	Right	0	0.8	4.3	2.24	1.09	0.767
			1	1.0	3.6	2.17	0.77
		Left	0	0.7	3.4	1.97	0.92	0.026*
			1	1.1	4.7	2.52	1.12
	I	Right	0	5.2	11.4	7.99	1.39	0.442
			1	4.5	10.1	7.72	1.58
		Left	0	6.3	12.4	8.16	1.38	0.010*
			1	3.9	10.2	7.20	1.66
	S	Right	0	2.5	4.1	3.20	0.49	0.552
			1	2.2	4.5	3.27	0.49
		Left	0	2.5	4.4	3.20	0.51	0.852
			1	2.1	4.0	3.22	0.42
	CB	Right	0	4.3	17.4	11.85	2.48	0.255
			1	6.2	14.3	11.26	1.70
		Left	0	7.5	20.2	12.25	2.74	0.016*
			1	6.1	19.7	10.57	2.93
P3	B	Right	0	1.3	6.3	3.43	1.23	0.624
			1	1.3	7.8	3.59	1.62
		Left	0	1.1	5.9	3.30	1.38	0.202
			1	1.6	9.4	3.78	1.82
	L	Right	0	1.1	6.8	2.59	1.18	0.853
			1	0.6	6.5	2.65	1.31
		Left	0	0.6	7.3	2.36	1.29	0.036*
			1	0.9	6.3	3.10	1.62
	I	Right	0	3.0	15.5	11.82	2.50	0.176
			1	7.4	14.3	11.08	1.86
		Left	0	9.1	15.6	12.15	1.96	0.001*
			1	5.7	15.3	10.40	2.45
	S	Right	0	2.1	8.0	2.88	1.05	0.167
			1	1.5	7.0	3.22	0.98
		Left	0	1.8	5.5	2.89	0.69	0.927
			1	1.6	5.3	2.91	0.81
	CB	Right	0	4.5	13.5	10.08	1.98	0.240
			1	3.8	13.3	9.45	2.46
		Left	0	4.3	12.2	9.44	1.76	0.990
			1	5.4	15.3	9.45	2.21

(c)

Position		Side	Gender	Minimum	Maximum	Mean	SD	𝑃 value
P1	B	Right	0	4.3	10.6	6.62	1.24	0.484
			1	3.8	10.3	6.34	1.56
		Left	0	3.6	8.4	5.82	1.58	0.644
			1	3.5	8.4	6.02	1.42
	L	Right	0	0.9	4.9	1.99	1.03	0.301
			1	1.5	3.4	2.26	0.67
		Left	0	1.1	5.8	1.88	0.89	0.054
			1	0.9	7.6	2.52	1.40
	I	Right	0	5.2	13.0	7.37	1.38	0.186
			1	3.8	12.1	6.72	2.00
		Left	0	3.4	13.0	7.28	2.10	0.052
			1	1.7	8.5	6.13	1.87
	S	Right	0	2.3	5.1	3.47	0.71	0.452
			1	2.0	5.2	3.32	0.66
		Left	0	2.4	5.9	3.46	0.68	0.474
			1	1.7	4.6	3.32	0.61
	CB	Right	0	11.3	20.9	15.68	2.42	0.847
			1	11.7	19.7	15.81	2.24
		Left	0	10.1	18.3	14.93	2.35	0.398
			1	8.7	17.4	14.38	2.12
P2	B	Right	0	2.7	9.1	5.70	1.62	0.534
			1	3.0	12.8	6.03	2.15
		Left	0	2.2	8.5	5.27	1.49	0.388
			1	3.6	8.6	5.62	1.31
	L	Right	0	1.0	4.3	1.96	0.85	0.514
			1	0.8	4.0	2.12	0.87
		Left	0	1.0	4.8	2.12	0.80	0.685
			1	0.8	4.3	2.22	0.99
	I	Right	0	4.0	14.5	8.09	1.71	0.076
			1	3.9	10.1	7.21	1.67
		Left	0	4.8	12.1	7.80	1.89	0.184
			1	4.1	9.2	7.12	1.57
	S	Right	0	2.5	4.1	3.21	0.56	0.623
			1	1.9	4.5	3.29	0.64
		Left	0	2.9	4.4	3.49	0.56	0.135
			1	2.0	4.2	3.23	0.63
	CB	Right	0	7.3	15.5	11.38	1.93	0.979
			1	8.6	14.9	11.39	1.91
		Left	0	6.5	16.2	11.02	2.68	0.610
			1	8.9	13.6	10.70	1.29
P3	B	Right	0	1.3	8.5	3.86	1.92	0.360
			1	1.5	9.4	4.38	2.05
		Left	0	1.1	8.7	3.60	1.99	0.350
			1	0.8	9.4	4.13	1.95
	L	Right	0	0.7	5.2	2.42	1.18	0.984
			1	0.8	6.5	2.43	1.62
		Left	0	0.8	5.3	2.92	1.24	0.483
			1	0.9	5.9	2.63	1.65
	I	Right	0	3.0	18.2	11.88	2.55	0.012*
			1	5.7	14.4	9.95	2.59
		Left	0	6.8	16.0	11.07	2.82	0.525
			1	5.5	15.6	10.58	2.54
	S	Right	0	2.1	8.0	2.91	1.08	0.772
			1	1.5	4.1	2.83	0.82
		Left	0	1.8	4.3	2.81	0.57	0.744
			1	1.3	3.9	2.75	0.70
	CB	Right	0	7.3	11.6	9.48	1.52	0.918
			1	6.1	12.4	9.53	1.94
		Left	0	5.7	18.5	9.92	2.78	0.427
			1	5.8	14.1	9.32	2.37

Groups: 1: women, 0: men; ∗: statistical significance; SD: standard deviation.