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. 2021 Oct 15;13(10):11680–11688.

Table 5.

Oral related quality of life in the two groups

Physical pain Functional limitation Social disability Psychological disability




Before orthodontic treatment After orthodontic treatment Before orthodontic treatment After orthodontic treatment Before orthodontic treatment After orthodontic treatment Before orthodontic treatment After orthodontic treatment

Control group (n=42) 34.51±4.43 43.57±3.84* 27.84±3.51 44.51±3.69* 36.84±4.08 48.26±2.68* 33.87±2.61 42.58±2.09*
Observation group (n=55) 35.06±4.89 50.36±2.43* 28.04±2.70 51.25±2.99* 35.94±5.11 52.48±2.06* 33.05±2.95 51.64±1.54*
χ2/t 0.5714 10.6279 0.3173 9.9359 0.9358 8.7716 1.4249 24.5883
P 0.5691 <0.0001 0.7517 <0.0001 0.3517 <0.0001 0.1575 <0.0001

Psychological discomfort Social handicap Physical disability



Before orthodontic treatment After orthodontic treatment Before orthodontic treatment After orthodontic treatment Before orthodontic treatment After orthodontic treatment

Control group (n=42) 37.24±1.97 44.84±2.61* 28.97±2.97 46.15±3.02* 36.21±4.01 42.84±0.97*
Observation group (n=55) 36.97±2.21 51.11±2.07* 29.15±3.03 53.71±1.14* 35.87±4.55 51.69±0.62*
χ2/t 0.6245 13.1970 0.2924 17.0630 0.3836 54.6476
P 0.5338 <0.0001 0.7706 <0.0001 0.7021 <0.0001

Compared with the same group before treatment;

*

P<0.05.