the preservation or improvement of the health of the teeth and gums, esp. by care on the part of the individual concerned, such as regular brushing.
| 单词 | θ16574 |
| 释义 | the world > health and disease > [noun] > science or study of > of teeth or gums (1) dental hygiene1884 the preservation or improvement of the health of the teeth and gums, esp. by care on the part of the individual concerned, such as regular brushing. |
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