There may be many factors that may make your teeth look stained and yellow. The most common reason of all is eating of tobacco which greatly stains your teeth, Drinking dark-colored liquids like coffee, cola, tea and red wine and by not taking good care of your teeth or oral hygiene, aging also makes teeth look less bright as the enamel being the outer and most used layer gets thinner with time and the dentin becomes darker. Thus if you want to take care of your oral hygiene then Austin Family Dentists are a dentist, Austin TX is the best place to be at. As the doctors here and years of experience and work constantly to deliver the best services. There are many possible reasons that must have stained inside the tooth, causing infection and discomfort. There may be some intrinsic stains that may cause harm to your teeth. For example, these intrinsic stains may be caused by exposure to too much fluoride as a child tooth may be developing at that time. That may also weaken the teeth. There can stains that a child’s teeth have taken by mother during her second half of pregnancy. Thus, causing weaker and thin enamel teeth.