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Table 1 Questionnaire about oral health

From: Self-check with plaque disclosing solution improves oral hygiene in schoolchildren living in a children’s home

  Answers At baseline At 1 month At 4 months P value
Toothbrushing
 How often do you clean your teeth? Never 0 (0%) 0 (0%) 0 (0%) 0.78
Once a day 1 (11.1%) 0 (0%) 1 (11.1%)
Twice a day 2 (18.2%) 3 (33.3%) 2 (18.2%)
Three times a day 6 (66.7%) 6 (66.7%) 6 (66.7%)
 How long do you clean your teeth? 1 min 3 (33.3%) 3 (33.3%) 4 (44.4%) 0.23
2 min 1 (11.1%) 0 (0%) 1 (11.1%)
3 min 2 (18.2%) 3 (33.3%) 2 (18.2%)
More than 5 min 1 (11.1%) 0 (0%) 0 (0%)
Not determined 2 (18.2%) 3 (33.3%) 1(11.1%)
 Do you clean your teeth in front of a mirror? Yes 5 (55.6%) 6 (66.7%) 4 (44.4%) 0.65
No 4 (44.4%) 3 (33.3%) 5 (55.6%)
Toothbrushing item
 When do you usually change a toothbrush? Every 1 month 2 (18.2%) 3 (33.3%) 5 (55.6%) 0.50
Every 2–3 months 5 (55.6%) 3 (33.3%) 2 (18.2%)
Every 6 months 0 (0%) 0 (0%) 1 (11.1%)
Not determined 2 (18.2%) 2 (18.2%) 1 (11.1%)
 Do you use toothpaste? Every time 8 (88.9%) 9 (100%) 9 (100%) 0.37
Often 0 (0%) 0 (0%) 0 (0%)
Sometimes 1 (11.1%) 0 (0%) 0 (0%)
Never 0 (0%) 0 (0%) 0 (0%)
 Do you use fluoride toothpaste? Yes 4 (44.4%) 6 (66.7%) 5 (55.6%) 0.47
No 0 (0%) 0 (0%) 0 (0%)
I don’t know 5 (55.6%) 3 (33.3%) 4 (44.4%)
 Do you use additional tooth cleaning appliances besides a toothbrush? Yes 0 (0%) 0 (0%) 6 (66.7%) 0.002
No 9 (100%) 9 (100%) 3 (33.3%)
  1. Cochran’s Q test or Friedman test was used for statistical analysis