Did you know that tooth enamel is actually the hardest surface in the human body? Teeth are incredibly strong and durable. However, they can yellow over time due to a number of causes including long term use of the antibiotics tetracycline and doxycycline, cigarette smoking, poor dental hygiene, too much fluoride in the environment, dental amalgam restorations that are made from silver sulfide containing materials, head and neck radiation or chemotherapy, genetics, aging, and even dental trauma resulting from damage sustained during a fall.
Yellow teeth can make smiling a difficult exercise. Most Americans rightly believe that smiling is a major asset in social situations. But for people whose teeth are discolored, this may not be the case. Even those individuals who regularly brush and floss m