Table 2. .

Oral Health Impact Profile (OHIP) Scores in Group I (Nonextraction) Subjects at Various Time Intervals of Observation^a

Items	OHIP Dimensions	OHIP Scores at Various Time Intervals of Evaluation						Significance (P-Value)
		T0, Mean ± SD	T1, Mean ± SD	T2, Mean ± SD	T3, Mean ± SD	T4, Mean ± SD	T5, Mean ± SD
Domain 1: Functional limitations
1	Had trouble in pronouncing words	0.29 ± 0.63	0.82 ± 0.83	0.82 ± 0.83	0.26 ± 0.45	0.26 ± 0.45	0.00 ± 0.00	.000***
2	Felt that sense of taste had worsened	0.00 ± 0.00	0.09 ± 0.29	0.00 ± 0.00	0.09 ± 0.29	0.09 ± 0.29	0.00 ± 0.00	.065NS
Total (1 + 2)		0.29 ± 0.63	0.91 ± 0.10	0.82 ± 0.83	0.35 ± 0.48	0.35 ± 0.65	0.00 ± 0.00	.000***
Domain 2: Physical pain
3	Had painful aching in your mouth	0.09 ± 0.29	2.06 ± 0.92	1.71 ± 0.97	1.35 ± 0.48	0.35 ± 0.65	0.18 ± 0.39	.000***
4	Had uncomfortable when eating food	0.09 ± 0.29	2.09 ± 0.79	1.41 ± 1.10	1.35 ± 0.80	0.71 ± 0.63	0.35 ± 0.65	.000***
Total (3 + 4)		0.18 ± 0.58	3.88 ± 1.79	3.12 ± 1.83	2.71 ± 1.14	1.06 ± 1.03	0.53 ± 0.90	.000***
Domain 3: Psychological discomfort
5	Has been feeling self-conscious	2.47 ± 1.31	2.65 ± 0.89	1.38 ± 1.56	0.85 ± 1.05	0.59 ± 0.82	0.21 ± 0.41	.000***
6	Had felt tense	1.09 ± 1.24	0.74 ± 0.96	0.53 ± 0.90	0.26 ± 0.62	0.09 ± 0.29	0.00 ± 0.00	.000***
Total (5 + 6)		3.56 ± 2.10	3.38 ± 1.67	1.82 ± 1.85	1.12 ± 1.45	0.68 ± 1.00	0.21 ± 0.41	.000***
Domain 4: Physical disability
7	Diet has been unsatisfactory	0.18 ± 0.39	1.35 ± 0.65	0.71 ± 0.87	0.44 ± 0.50	0.44 ± 0.50	0.00 ± 0.00	.000***
8	Has had to interrupt meals	0.00 ± 0.00	1.09 ± 0.51	0.74 ± 0.62	0.26 ± 0.45	0.18 ± 0.39	0.00 ± 0.00	.000***
Total (7 + 8)		0.18 ± 0.39	2.44 ± 0.99	1.44 ± 1.38	0.71 ± 0.87	0.62 ± 0.78	0.00 ± 0.00	.000***
Domain 5: Psychological disability
9	Finds it difficult to relax	0.09 ± 0.29	0.44 ± 0.66	0.34 ± 0.48	0.18 ± 0.39	0.00 ± 0.00	0.00 ± 0.00	.000***
10	Has been a bit embarrassed	1.62 ± 1.23	1.41 ± 1.26	0.82 ± 0.94	0.56 ± 0.89	0.21 ± 0.41	0.09 ± 0.30	.000***
Total (9 + 10)		1.71 ± 1.36	1.85 ± 1.28	1.18 ± 0.71	0.74 ± 1.14	0.21 ± 0.41	0.09 ± 0.30	.000***
Domain 6: Social disability
11	Has been irritable with other people	0.09 ± 0.29	0.09 ± 0.29	0.18 ± 0.39	0.09 ± 0.30	0.00 ± 0.00	0.00 ± 0.00	.050NS
12	Has had difficulty during usual jobs	0.09 ± 0.29	0.00 ± 0.00	0.18 ± 0.39	0.09 ± 0.30	0.00 ± 0.00	0.00 ± 0.00	.005**
Total (11 + 12)		0.18 ± 0.58	0.09 ± 0.29	0.26 ± 0.62	0.26 ± 0.62	0.00 ± 0.00	0.00 ± 0.00	.006**
Domain 7: Handicap
13	Has been life less satisfying	0.09 ± 0.29	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	.010*
14	Has been totally unable to function	0.09 ± 0.29	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	.010*
Total (13 + 14)		0.18 ± 0.58	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00	.010*
Total OHIP-14 score		5.91 ± 3.92	12.12 ± 6.16	8.03 ± 6.26	5.53 ± 4.38	2.71 ± 2.50	0.76 ± 0.89	.000***

^aSD indicates standard deviation; T₀, baseline data; T₁, 1 month after start of orthodontic treatment; T₂, 3 months after start of orthodontic treatment; T₃, 6 months after start of orthodontic treatment; T₄, 1 year after start of orthodontic treatment; T₅, 1 week after completion of orthodontic treatment; and NS, nonsignificant.

^*P < .05; ** P < .01; *** P < .001.