Oral hygiene and toothbrushing habits of 12-year-old children in Hong Kong
Randomly selected groups of 486 Southern Chinese and 129 non‐Chinese 12–yr‐old Hong Kong children were examined for calculus and oral debris. The non‐Chinese children had less plaque and calculus than the Chinese children (P < 0.001). The girls had lower plaque scores than the boys in both ethnic...
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Veröffentlicht in: | Community dentistry and oral epidemiology 1986-10, Vol.14 (5), p.242-243 |
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