There are two types of tooth stains, says Rawdin: intrinsic stains, which are built into the internal structure of the teeth, and extrinsic stains, which sit on the surface of the teeth.

There are three primary categories of teeth discoloration: extrinsic, intrinsic, and age-related stains. Extrinsic stains affect the outer enamel layer of the tooth and are typically caused by ...

Types of stains. Stains on your teeth can be intrinsic or extrinsic. Intrinsic stains lie on the dentin, a layer underneath your enamel. Extrinsic stains are on the surface of the enamel. ‌ ...

“they actually get absorbed into the teeth and become more of those intrinsic stains,” warns Dr. Kahng. And that’s where the actual color of the teeth starts to dull or yellow. Age compounds ...

There are two types of discoloration: extrinsic and intrinsic. Extrinsic stains occur when the enamel (surface of your teeth) becomes discolored over time due to things you eat, drink, or do.

“For intrinsic stains caused by dental trauma and aging, your dentist may recommend professional whitening treatments, internal bleaching for non-vital teeth, or veneers and crowns to mask the ...