Teeth Whitening Myths vs. Reality: What Actually Works for a Brighter Smile Teeth whitening is one of the most popular cosmetic dental treatments — yet it’s also one of the most misunderstood. Between social media trends, DIY remedies, and over-the-counter products, it can be difficult to separate fact from fiction. If you’ve ever wondered whether whitening is safe, effective, or right for you, this guide breaks down the most common teeth whitening myths vs. the reality , so