Visible Portion of Anterior Teeth at Rest and Analysis of Different Smile Characteristics in the Saudi Population of the Jeddah Region

Table 5

Frequency of smile line, smile arc, maxillary teeth displayed during smiling of total subjects (males and females), and gender-based differences for various parameters using Pearson chi-square test.

		Total subjects		Male			Female			value
		N	% of total	N	% of total	% within gender	N	% of total	% within gender
Smile line level	Average	99	63.1	50	31.8	64.9	49	31.2	61.3	0.032
	Low	23	14.6	17	10.8	22.1	6	3.8	7.5
	High	23	14.6	6	3.8	7.8	17	10.8	21.3
	Gummy	12	7.6	4	2.5	5.2	8	5.1	10
Smile arc	Consonant	105	66.9	52	33.1	67.5	53	33.8	66.3	0.140
	Flat	42	26.8	23	14.6	29.9	19	12.1	23.8
	Reversed	10	6.4	2	1.3	2.6	8	5.1	10
Maxillary teeth displayed during smiling	A-smile	2	1.3	0	0	0	2	1.3	2.5	0.002
	B-smile	25	15.9	5	3.2	6.5	20	12.7	25
	C-smile	66	42	37	23.6	48.1	29	18.5	36.3
	D-smile	55	35	33	21	42.9	22	14	27.5
	E-smile	9	5.7	2	1.3	2.6	7	4.5	8.8

Significant .