Comparison of smile variables among male health students according to age.

Table 2: Comparison of smile variables among male health students according to age.

Smile variables	Age	n	Mean	Std. Deviation	Std. Error Mean	P value, t test
Low upper gingival margin	20-22-years	91	4.19	1.452	0.152	0.001^*
Low upper gingival margin	23-25-years	216	6.25	1.895	0.129	0.001^*
Small Laterals	20-22-years	91	7.87	1.284	0.135	0.027^*
Small Laterals	23-25-years	216	7.75	1.544	0.105	0.027^*
Normal gingival display	20-22-years	91	7.82	1.697	0.178	0.034^*
Normal gingival display	23-25-years	216	7.72	1.496	0.102	0.034^*
High upper gingival margin	20-22-years	91	8.88	1.114	0.117	0.028^*
High upper gingival margin	23-25-years	216	7.91	1.501	0.102	0.028^*
Straight smile arc	20-22-years	91	5.91	2.074	0.217	0.001^*
Straight smile arc	23-25-years	216	5.21	2.626	0.179	0.001^*
Midline shift	20-22-years	91	6.23	1.745	0.183	0.082
Midline shift	23-25-years	216	7.02	1.516	0.103	0.082
Aesthetic veneers	20-22-years	91	8.89	1.130	0.118	0.040^*
Aesthetic veneers	23-25-years	216	8.91	1.024	0.070	0.040^*

Note: *Statistically significant