Table 2 The accuracy of caries-related knowledge of rural–urban migrant children (n =1042)
2011(%) | 2013(%) | Change (%) | p-value a | |
|---|---|---|---|---|
Eating sweets in the bedtimes can lead to cavities | 69.67 | 89.73 | 20.06 | <0.001 |
Frequently eating vegetables can lead to cavities | 71.59 | 90.79 | 19.20 | <0.001 |
Failure to brush teeth in the morning and evening can cause tooth decay | 70.44 | 88.96 | 18.52 | <0.001 |
Irregular arrangement of teeth can cause tooth decay | 77.06 | 88.58 | 11.52 | <0.001 |
Hard toothbrush is harmful to teeth | 82.05 | 88.68 | 6.63 | <0.001 |
Cavities should be treated in time | 16.51 | 22.65 | 6.14 | <0.001 |
Drinking milk is good for tooth development | 16.22 | 21.31 | 5.09 | 0.002 |
Cavities will affect the general health | 75.82 | 80.52 | 4.70 | 0.009 |
Toothbrushes should be replaced at least every three months | 27.74 | 32.15 | 4.41 | 0.019 |
The most important time to brush teeth is during nighttime | 28.02 | 25.34 | −2.68 | 0.123 |
Fluoride toothpaste can prevent cavities | 78.98 | 71.50 | −7.48 | <0.001 |
Failure to drink milk can lead to cavities | 23.61 | 13.05 | −10.56 | <0.001 |