Some patients assume that, since the aligners cover their teeth, it’s impossible to get cavities with Invisalign. That’s not the case. To ensure tooth decay, periodontal disease, and other serious oral health problems don’t develop, you need to commit to good oral hygiene best practices throughout your teeth-straightening journey, like flossing. If you’re not sure how to floss with Invisalign, then read on for a quick how-to!