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Table 2 Toothbrushing frequency and prevalence of oral problems

From: Impact of COVID-19 on the oral health of adults in Wuhan and China: results of a nationwide online cross-sectional questionnaire survey

 

Population

Prevalence of certain oral problems (%)

Gingival bleeding

Bad breath

Ulcers

Swelling

Toothache

TMJ disorder

Twice or more

2450

22.08*

17.18*#

16.37*

11.76*#

8.20*#

5.14

Once

814

22.60*

23.83*

18.92*

12.78

11.18

4.42

Less than once

88

37.50

38.64

25.00

17.05

15.91

6.82

  1. *p < 0.05 compared with the “less than one” group; #p < 0.05 compared with the “once” group