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. 2020 Aug 1;9(3):106–111. doi: 10.1016/j.ejwf.2020.07.004

Table 2.

Association between pain/disability and reported emergency

Emergency NRS-11
Median P value
Debonded bracket
 Yes 4 0.094
 No 2
Poking wire
 Yes 4 0.001c
 No 2
Sharp ligature tie
 Yes 4 0.005b
 No 2
Broken fixed retainer
 Yes 4 0.633
 No 3
Ulcer
 Yes 5 0.013a
 No 3
Inflammation
 Yes 3 0.368
 No 3
Swelling
 Yes 1 0.077
 No 3
Exudate
 Yes 1 0.356
 No 3
Bleeding
 Yes 3 0.694
 No 3
Bad odor
 Yes 3 0.241
 No 2
Problematic palatal device
 Yes 5 0.008b
 No 2.5
Lost retainer
 Yes 1.5 0.517
 No 3

NRS, Numerical Rating Scale.

Wilcoxon rank-sum test.

a

P < 0.05.

b

P < 0.01.

c

P < 0.001.