Variables | Categories | Intervention | Control | p value |
---|---|---|---|---|
n (%) | n (%) | |||
Knowledge questions | ||||
The main cause of tooth decay | At baseline | 17(15.5) | 13(11.8) | 0.432 |
After 1 year | 79(71.8) | 20(18.2) | < 0.001 | |
The main cause of gum diseases | At baseline | 29(26.4) | 64(58.2) | < 0.001 |
After 1 year | 60(54.5) | 41(37.3) | 0.010 | |
Prevention of dental caries and periodontal diseases | At baseline | 78(70.9) | 85(77.3) | 0.281 |
After 1 year | 100(90.9) | 88(80.0) | 0.022 | |
Foods that can cause dental caries | At baseline | 71(64.5) | 72(65.5) | 0.888 |
After 1 year | 82(74.5) | 71(64.5) | 0.107 | |
Development of oral cancer | At baseline | 74(67.3) | 84(76.4) | 0.134 |
After 1 year | 96(87.3) | 82(74.5) | 0.016 | |
Behavior questions | ||||
Frequency of tooth brushing | At baseline | 39(35.5) | 25(22.7) | 0.038 |
After 1 year | 74(67.3) | 7(6.4) | < 0.001 | |
Occasion of tooth brushing | At baseline | 21(19.1) | 8(7.3) | 0.010 |
After 1 year | 70(63.6) | 4(3.6) | < 0.001 | |
Devices using in tooth brushing | At baseline | 99(90.0) | 92(83.6) | 0.163 |
After 1 year | 106(96.4) | 84(76.4) | < 0.001 | |
Device used to remove food debris stuck between the teeth | At baseline | 8(7.3) | 5(4.5) | 0.391 |
After 1 year | 51(46.4) | 4(3.6) | < 0.001 | |
Pattern of tooth brushing (by direct observation) | At baseline | 5(4.5) | 3(2.7) | 0.721 |
After 1 year | 95(86.4) | 6(5.5) | < 0.001 |