这里他列出你可能觉得有益于牙齿的十件事,但实则不然。
1. Electric toothbrushes
电动牙刷
Electric toothbrushes - yes, this may sound strange but if you are not using the right technique, they can be useless.
电动牙刷——是的,也许听起来奇怪,但如果你方法不对,它们就没什么作用。
With most electric toothbrushes you only need to touch the tooth with the bristles.
使用大多数的电动牙刷,你只需要把刷毛碰到牙齿就行了。
If you push too hard the bristles bend and are not effective.
如果你按压太用力,刷毛弯曲,就没效果了。
Take your electric toothbrush with you and ask your dental hygienist for a demonstration.
带上你的电动牙刷,让牙医给你做下示范。
2. Whitening toothpastes
美白牙膏
Abrasive tooth pastes such as bicarbonate or whitening pastes.
那些含有碳酸氢盐或美白成分等有研磨作用的牙膏。
They are abrasive and can wear your enamel away and in the long-term lead to sensitivity and darkening of your teeth as the enamel wears and the inner amber-coloured dentine becomes visible.
它们都有研磨作用,会磨损牙釉质,长此以往会导致牙齿敏感和发黑,因为牙釉质磨损会暴露出里面黄褐色的牙质。
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2020-09-15
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