brush one's teeth
clean one's teeth BrE

Your child can learn how to brush his or her own teeth at about 3 years of age.

In a week, he was able to brush his teeth by himself.

She told me not to brush my teeth with the water.

Although some children quickly learn to brush their teeth, others do not.

You should brush your teeth once a day, before bed.

You should brush your teeth 2 times a day, in the morning and at night.

No word on whether they will get them to brush their teeth, too.

He had brushed his teeth four times and couldn't stand still.

"Do you think I have time to brush my teeth?"

Does he brush their teeth every night before they go to sleep?