Dental Arch Dimensions in Saudi Adults

Table 4

Upper and lower anterior teeth measurements including independent sample t-tests comparing males to females.

Abbreviation	Gender	n	Mean	Standard error of mean	Standard deviation	Minimum	Maximum	Significance (2-tailed)	Significance	Mean difference	Standard error difference	95% confidence interval of the difference
												Lower	Upper
Upper anterior teeth
U3CL	M	73	25.95	0.29	2.44	21.79	31.23	0.147	NS	0.70	0.48	−0.25	1.65
	F	96	25.25	0.36	3.51	16.23	36.92
U3CB	M	73	33.88	0.29	2.47	26.76	39.67	0.680	NS	0.17	0.41	−0.64	0.97
	F	96	33.71	0.28	2.74	28.92	41.78
U3MC	M	73	27.40	0.27	2.31	22.46	34.49	0.649	NS	−0.31	0.67	−1.63	1.02
	F	96	27.70	0.55	5.35	19.94	57.25
U2MC	M	73	16.81	0.12	1.04	14.55	19.12	0.886	NS	0.05	0.37	−0.68	0.79
	F	96	16.76	0.31	3.05	12.26	42.73
Lower anterior teeth
L3CG	M	73	21.76	0.30	2.55	17.02	31.93	0.000		1.33	0.34	0.66	2.00
	F	96	26.73	0.26	2.19	22.46	33.15
L3CB	M	73	26.73	0.26	2.19	22.46	33.15	0.031		0.71	0.33	0.06	1.35
	F	96	26.02	0.21	2.03	20.96	29.94
L3MC	M	73	21.45	0.15	1.32	18.74	25.31	0.007		0.59	0.22	0.16	1.01
	F	96	20.86	0.15	1.44	16.47	22.99
L2MC	M	73	10.81	0.11	0.95	9.18	13.11	0.090	NS	0.23	0.14	−0.04	0.50
	F	96	10.58	0.08	0.81	8.70	12.40

NS: not significant; , , and .