What is this dark spot on my tooth?

See your dentist: Some of the most common causes for dark spots are: surface staining, calculus,decay, intrinsic staining and interior damage to the tooth. See your dentist for examination, diagnosis and treatment if needed.

Dark spot: A dark spot on your tooth may be decay or stain. The only way to know for sure is to see a dentist. Decay will progress if it is not treated so the sooner you see a dentist the better, treatment will be less complicated, simpler, and less expensive.