Teeth can be discolored because of several factors. Some of the most common causes are usually eating and consuming habits, smoking, get older, and genetics. People who drink colored liquids for instance tea and coffee use a higher risk of obtaining discolored teeth in excess of years. Also, acidic food also causes tooth enamel to erode. Smoking can be a known culprit for teeth stains since nicotine deposits stick to the teeth and gums. As for genetics, people may be born with yellowish teeth while pearly white’s.