Have you noticed that your teeth aren’t as bright as they used to be? Tooth discoloration is one of the most common cosmetic concerns among adults. However, not all stains are the same. Understanding the type of stain affecting your teeth can help determine the most effective treatment. Dentists generally classify tooth discoloration into three categories: extrinsic stains, intrinsic stains, and age-related stains.

Here’s what you should know about each type and how to address them.