Dental Care Basics How Do Teeth Stain and Discolor? Share Pin Email More in Dental Care Basics Procedures and Treatments Dental Emergencies Cosmetic Dentistry Orthodontics Pediatric Dentistry Glossary Resources Updated April 21, 2016 Intrinsic and extrinsic teeth stains have many causes. Knowing what they are will help you to avoid them. We'll show you! Up Next Up Next Video Does Coffee Stain Teeth? Up Next Video What is Teeth Whitening? Up Next Video Who is NOT a Candidate for Teeth Whitening? Up Next Video What Types of Oral Care Products Help My Smile?