How many times has she heard the lecture from a dentist or dental hygienist about how she should brush and floss?

她从牙科医生和牙科护理员那里听过多少次应该怎样使用牙刷和牙线呢？

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Your dentist and dental hygienist see you only a few times a year, but you can examine your mouth weekly to look for changes that might be of concern. These changes could include.

你的牙医以及牙科保健师可能一年只见你几次，但是你可以每周去检查口腔，看看发生了什么需要注意的改变。

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There is good evidence that a small-headed counter oscillating electric toothbrush helps in removing dental plaque but they must be used correctly and your dentist or hygienist will advise.

很多研究证据表明使用小头反震荡电动牙刷有助于去除牙菌斑，但使用方式要正确并遵循牙医或牙科保健员的建议。

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Alumni include a dental hygienist, a rabbinical student and someone who works at the World Bank.

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She had worked as a dental hygienist and was known to be obsessively attentive to her teeth, getting them cleaned every 30 days.

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Now back in London, the dental hygienist had been half-way through a six-week trip, intending to go on to China.

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