Even the patient’s with the best oral hygiene can still develop cavities! It’s not easy to clean teeth with deep grooves, especially those back molars. Those deep grooves can trap bacteria, which is why it is the most common place to get a cavity. Luckily, there’s another safety net to help prevent cavities in addition to your daily brushing and flossing! It’s called a sealant, which is a thin protective coating that adheres to the tooth. The sealant fills in the deep grooves, making them easier for you to keep clean at home!