The caries rate of adolescents corresponding to various sweets and oral hygiene habits
| Group | N (%) | Dental caries | |||
| DMFT (SD) | t/F | P value | |||
| Toothbrush habits | ≥2/d | 1301 (38.43%) | 1.58±2.36 | −7.15 | >0.05 |
| <2/d | 2084 (61.57%) | 1.64±2.36 | |||
| Use of dental floss | No | 2987 (80.04%) | 1.65±2.40 | 1.004 | >0.05 |
| Occasionally | 644 (17.26%) | 1.66±2.34 | |||
| Every week | 48 (1.29%) | 1.58±2.49 | |||
| Every day | 52 (1.39%) | 1.08±1.63 | |||
| Desserts and candies | ≥2 times/day | 493 (13.21%) | 1.81±2.51 | 7.946 | <0.001 |
| ≥2 times/week | 1657 (44.41%) | 1.76±2.45 | |||
| <2 times/week | 1581 (42.37%) | 1.46±2.24 | |||
| Carbonated drinks | ≥2 times/day | 226 (6.06%) | 1.80±2.74 | 3.141 | <0.05 |
| ≥2 times/week | 1103 (29.56%) | 1.77±2.28 | |||
| <2 times/week | 2402 (64.38%) | 1.57±2.38 | |||
| Sugared drinks | ≥2 times/day | 302 (8.09%) | 1.62±2.32 | 1.459 | >0.05 |
| ≥2 times/week | 1464 (39.24%) | 1.72±2.41 | |||
| <2 times/week | 1965 (52.67%) | 1.59±2.36 | |||
DMFT, decayed–missing–filled teeth.