Table 3.

Comparison of patients’ quality of life before and after orthodontic treatment

	Before treatment	After treatment	t	P
Functional limitation	2.74±0.89	1.04±0.57	10.00	<0.0001
Physical pain	2.84±0.84	0.98±0.29	14.26	<0.0001
Psychological discomfort	2.36±0.63	1.24±0.36	9.55	<0.0001
Psychological disabilities	1.55±0.47	1.01±0.29	7.21	<0.0001
Physical disabilities	2.44±0.29	1.18±0.44	11.64	<0.0001
Social disabilities	2.66±0.57	1.24±0.49	12.34	<0.0001
Handicapped	2.01±0.63	1.45±0.50	5.54	<0.0001
Total	16.60±1.61	8.23±1.14	33.20	<0.0001