WHAT CAUSES YELLOW TEETH?
There are numerous types of teeth stains; some are genetic, environmental or pharmacological in nature. The most common are surface stains on the enamel or beneath the enamel in the dentin. Surface stains are caused by foods, beverages and lifestyle behaviors, like smoking. Over time, surface stains may penetrate the enamel and change the color of the dentin, which darkens the overall appearance of the tooth due to the translucency of the enamel layer. When this occurs, the tooth often appears yellow.
HOW DO WHITENING PRODUCTS REMOVE SURFACE STAINS?
Certain products may remove surface stains by using abrasion or through a chemical reaction. Whitening toothpaste may contain silica molecules that polish the enamel. Electric toothbrush action of the bristles on the tooth surface can help remove the stains.
IS TEETH WHITENING SAFE FOR MY TEETH?
The safest way to whiten your teeth is under the supervision of your dental professional who will assess your overall oral health, the health of your teeth and know the history of your teeth. For example, if your dental professional knows that you are prone to sensitivity, he may recommend a gentle formulation to ensure you get the results you are looking for with a treatment that you will enjoy.
HOW LONG DOES MY WHITENING TREATMENT LAST?
Most whitening services are designed to last for a long period of time, but relapse is not uncommon due to personal behaviors that re-stain your teeth.