Some unhealthy habits like tobacco and some foods and beverages like coffee, red wine, tomato sauce, blackberries, etc. change the color of the teeth to make it darker. Teeth whitening is the best option to regain the bright smile with natural white teeth.
The dentist makes sure that your teeth are healthy and their enamel is intact, then selects the whitening technique that is suited to your teeth.
The duration of this procedure varies according to the initial teeth color and the selected technique. As for the longevity of the results, it largely is dependent on the patient’s habits of consumption, but can be increased with simple touch-ups to keep your white smile much longer.