Table 4. .

Oral Health Impact Profile (OHIP) Scores in Group II (First Premolar Extraction) 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	0.21 ± 0.48	0.94 ± 0.98	0.76 ± 0.99	0.56 ± 0.75	0.47 ± 0.56	0.12 ± 0.33	.000***
2	Felt that sense of taste had worsened	0.15 ± 0.36	0.26 ± 0.57	0.26 ± 0.57	0.06 ± 0.24	0.06 ± 0.24	0.06 ± 0.24	.057NS
Total (1 + 2)		0.35 ± 0.60	1.18 ± 1.24	1.00 ± 1.15	0.62 ± 0.85	0.53 ± 0.71	0.18 ± 0.46	.000***
Domain 2: Physical pain
3	Had painful aching in your mouth	0.44 ± 0.61	2.12 ± 0.88	1.71 ± 0.90	1.24 ± 0.78	0.82 ± 0.80	0.15 ± 0.36	.000***
4	Had uncomfortable when eating food	0.35 ± 0.69	2.29 ± 0.91	1.82 ± 0.94	1.15 ± 0.78	0.79 ± 0.60	0.21 ± 0.48	.000***
Total (3 + 4)		0.82 ± 0.99	4.15 ± 1.57	3.41 ± 1.58	2.32 ± 1.30	1.62 ± 1.18	0.29 ± 0.67	.000***
Domain 3: Psychological discomfort
5	Has been feeling self-conscious	2.32 ± 1.29	2.41 ± 1.23	1.19 ± 1.22	1.35 ± 1.15	0.85 ± 0.89	0.35 ± 0.59	.000***
6	Had felt tense	0.85 ± 0.82	0.88 ± 1.01	0.71 ± 0.87	0.56 ± 0.78	0.21 ± 0.54	0.03 ± 0.17	.000***
Total (5 + 6)		2.91 ± 1.78	3.29 ± 1.77	2.68 ± 1.79	2.09 ± 1.66	1.06 ± 1.25	0.38 ± 0.65	.000***
Domain 4: Physical disability
7	Diet has been unsatisfactory	0.26 ± 0.57	1.59 ± 1.31	1.12 ± 1.01	0.71 ± 0.80	0.41 ± 0.61	0.09 ± 0.30	.000***
8	Has had to interrupt meals	0.29 ± 0.68	1.21 ± 0.95	1.09 ± 0.90	0.59 ± 0.66	0.38 ± 0.55	0.06 ± 0.24	.000***
Total (7+ 8 )		0.56 ± 1.05	2.74 ± 1.90	2.21 ± 1.67	1.29 ± 1.35	0.79 ± 1.01	0.15 ± 0.44	.000***
Domain 5: Psychological disability
9	Finds it difficult to relax	0.41 ± 0.78	0.71 ± 0.87	0.47 ± 0.66	0.29 ± 0.52	0.24 ± 0.43	0.06 ± 0.24	.001**
10	Has been a bit embarrassed	1.53 ± 1.08	1.71 ± 0.97	1.44 ± 1.05	1.03 ± 0.72	0.62 ± 0.65	0.26 ± 0.45	.000***
Total (9 + 10)		1.79 ± 1.32	2.38 ± 1.26	1.94 ± 1.45	1.32 ± 0.95	0.82 ± 0.83	0.41 ± 0.70	.000***
Domain 6: Social disability
11	Has been irritable with other people	0.35 ± 0.65	0.59 ± 0.82	0.53 ± 0.89	0.29 ± 0.63	0.12 ± 0.33	0.09 ± 0.30	.000***
12	Has had difficulty during usual jobs	0.24 ± 0.55	0.38 ± 0.70	0.29 ± 0.52	0.21 ± 0.48	0.12 ± 0.33	0.03 ± 0.17	.023*
Total (11 + 12)		0.59 ±1.10	0.97 ± 1.19	0.79 ± 1.22	0.50 ± 0.82	0.24 ± 0.55	0.12 ± 0.41	.000***
Doamin 7: Handicap
13	Has been life less satisfying	0.29 ± 0.63	0.21 ± 0.48	0.26 ± 0.51	0.18 ± 0.38	0.09 ± 0.29	0.03 ± 0.17	.019*
14	Has been totally unable to function	0.03 ± 0.17	0.12 ± 0.41	0.03 ± 0.17	0.00 ± 0.00	0.00 ± 0.00	0.03 ± 0.17	.267NS
Total (13 + 14)		0.32 ± 0.73	0.38 ± 0.89	0.29 ± 0.58	0.15 ± 0.36	0.09 ± 0.29	0.06 ± 0.34	.009**
Total OHIP-14 score		7.71 ± 4.21	15.59 ± 5.78	12.47 ± 6.28	8.12 ± 5.28	5.15 ± 4.17	1.50 ± 2.62	.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.