Table 5.
Oral hygiene habits, general health, vitamin C supplements, and frequency of swimming in relation to the prevalence of dental erosion
| Variables | Total No. of children | Dental erosion | ||
|---|---|---|---|---|
| No. of children | % | P | ||
| Frequency of brushing | ||||
| Once or less daily | 459 | 136 | 29.6 | 0.281 |
| Twice or more daily | 1040 | 280 | 26.9 | |
| Duration of brushing | ||||
| ≤1 min | 266 | 73 | 27.4 | 0.908 |
| 2 min | 702 | 192 | 27.4 | |
| ≥3 min | 531 | 151 | 28.4 | |
| Types of toothpaste | ||||
| Fluoride | 656 | 170 | 25.9 | 0.333 |
| Non-fluoride | 74 | 20 | 27.0 | |
| Not sure | 769 | 226 | 29.4 | |
| Vomiting | ||||
| Once or more monthly | 16 | 2 | 12.5 | 0.171 |
| Never/occasionally | 1483 | 414 | 27.9 | |
| Heartburn or nausea | ||||
| Once or more monthly | 9 | 0 | - | 0.136 |
| Never/occasionally | 1490 | 416 | 27.9 | |
| Vitamin C supplements | ||||
| Yes | 273 | 78 | 28.6 | 0.749 |
| No | 1226 | 338 | 27.6 | |
| Frequency of swimming in summer | ||||
| Once or more weekly | 732 | 193 | 26.4 | 0.229 |
| Never/occasionally | 767 | 223 | 29.1 | |
Chi-square test