Roshini Raj, MD, is Health's former magazine's medical editor and coauthor of What the Yuck?!. Board-certified in gastroenterology and internal medicine, Dr. Raj is a Clinical Associate Professor of ...

The advice from dental experts for keeping your teeth clean sounds simple enough: Brush twice a day and floss. But choosing among the many products available to help you do this can be daunting.

Toothpaste is a key tool in your oral care routine. Dentists recommend that you use toothpaste with fluoride in it. Crest and Colgate are two of the most popular toothpaste brands available. While ...

想象一下，每天早上你走进卫生间，拿起那把你每天都在用的牙刷，却不禁心生疑虑：这把牙刷到底有多干净？你是否曾在心底暗暗担忧，细菌在牙刷上肆意滋生，影响你的口腔健康？在这个看似平常的场景中，潜藏着许多不为人知的细菌威胁。没错，牙刷虽然 ...