"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." “The process is thought to help remove harmful bacteria and plaque from the mouth,” explains Michael J.

Photo illustration by Oona Zenda of KFF Health News. Becky Carroll was missing a few teeth, and others were stained or crooked. Ashamed, she smiled with lips pressed closed. Her dentist offered to fix ...

About 20 years ago, my dentist was out of the office when I had my regular dental hygiene appointment. His partner said that I had stain on my teeth which couldn't be removed, and which could indicate ...