Teeth can develop unsightly dental stains and discoloration that do not respond to conventional oral hygiene methods due to a variety of factors like smoking, injuries, and frequent exposure to pigments, tannins, and dyes. However, it is possible for some people to develop frustrating dental discoloration due to the genetics they inherit from their parents. Here’s a quick look at how enamel stains can run in the family and how your dentist can help.