Keeping your teeth and gums healthy requires a solid oral hygiene regimen, which starts with visiting your dentist every six months for a checkup and extends to consistently brushing and flossing at home. However, those aren’t the only ways you can help prevent tooth decay, gum disease, and even serious dental emergencies. To avoid dental damage, you should also follow your dentist’s lead. For example, here are a few things your dentist never puts in their mouth.