Table 2 Mean dmft scores of the surveyed children according to their dietary and oral hygiene and dental visit behaviours
From: Oral health status and behaviours of preschool children in Hong Kong
Group | N (%) | dmft ± S.D. | Sig. | Bonferroni Comparison | |
|---|---|---|---|---|---|
Dietary habits | |||||
Bottle feeding | Yes | 143 (20%) | 2.3 ± 3.4 | p > 0.05 | |
No | 557 (80%) | 2.2 ± 3.5 | |||
Bottle feeding duration (months) | ≤ 24 | 202 (29%) | 2.5 ± 4.0 | p > 0.05 | |
> 24 | 495 (71%) | 2.1 ± 3.3 | |||
Snacking frequency (times per day) | ≤ 2 | 386 (55%) | 2.0 ± 3.3 | p = 0.05 | |
> 2 | 314 (45%) | 2.5 ± 3.7 | |||
Oral hygiene habits | |||||
Age toothbrushing started (months) | 1 – 12 a | 84 (12%) | 1.1 ± 2.2 | p = 0.01 | a < c, d |
13 – 18 b | 172 (25%) | 2.1 ± 3.5 | |||
19 – 24 c | 160 (23%) | 2.5 ± 3.7 | |||
> 24 d | 284 (41%) | 2.5 ± 3.7 | |||
Brushing frequency (times/day) | < 2 | 175 (25%) | 2.6 ± 3.7 | p > 0.05 | |
≥ 2 | 525 (75%) | 2.1 ± 3.5 | |||
Parental assistance in toothbrushing | Yes | 559 (80%) | 2.2 ± 3.5 | p > 0.05 | |
No | 141 (20%) | 2.5 ± 3.6 | |||
Use other cleansing aids (N = 700) | Yes | 156 (22%) | 2.5 ± 3.7 | p > 0.05 | |
No | 544 (78%) | 2.1 ± 3.4 | |||
Dental service use | |||||
Visited a dentist | Yes | 88 (13%) | 3.1 ± 3.7 | p < 0.01 | |
No | 583 (83%) | 2.0 ± 3.5 |