洗牙可以帮助预防牙龈疾病。

A toothwash can help prevent gum diseases.

我每年都会去医院洗牙。

I go to the hospital for a toothwash every year.

洗牙后，我的牙齿感觉非常干净。

After the toothwash, my teeth feel very clean.

医生建议我每六个月洗牙一次。

The dentist recommends a toothwash every six months.

你应该定期洗牙以保持口腔健康。

You should have a regular toothwash to maintain oral health.

定期洗牙可以帮助去除牙垢。

Regular dental cleanings can help remove tartar.

洗牙后，他的牙齿变得雪白的。

His teeth were snow-white after the dental cleaning.

您距离上次洗牙已经六个月了。

You last got your teeth cleaned six months ago.

问：洗牙后抛光牙齿是否有必要？

Question: Is tooth polishing necessary at the end of a dental visit?

我可以为你洗牙。

I can clean your teeth.