I'm planning to take an appointment in a cosmetic dentistry ( http://www.willowden...etic-dentistry/ ) for getting the teeth whitening treatment from a clinic in Mississauga. My teeth got stained due to the too much intake of tea and coffee. My mom used to warn me for intaking coffee a couple of times. Also, I used to smoke per day three times. It may be due to that my teeth got stained. What can I do to maintain my brighter smile? Are there any risks associated with teeth whitening?