TEA, COFFEE, AND BROWN SOFT DRINKS
Coffee and brown soft drinks (e.g., Pepsi, Coke) are often singled out as an unwise choice if you want to keep a white smile, but tea can be just as damaging and has a greater staining power on the teeth. And do not think that white teas are any safer! In fact, their propensity to cause enamel erosion makes teeth more susceptible to staining. Avoid sipping white teas over a long period of time and rinse your mouth thoroughly after drinking them.
WHAT STAINS YOUR NAPKIN
If a food can stain your napkin, it can stain your teeth. Red wine and berries are the worst enemies to white teeth (and tablecloths). Therefore, it is best to only eat berries occasionally and to rinse your mouth with water after eating them. Same goes for red wine! On the other hand, other fruits like apples and pears are less acidic and paler in colour. These are better choices that taste just as good as their darker counterparts.
Some have a sweet tooth while others prefer salty foods like pickles. Unfortunately, the vinegar and acidity contained in pickles and other similar foods cause erosion of the enamel. As a result, teeth with thinner enamel will appear duller and yellower. Sauces like tomato sauce, salad dressings or soy sauce can also have this eroding effect.
Everyone knows the negative effects of smoking on tooth colour. Cigarette use leads to a more acidic oral environment. Tooth enamel is constantly being attacked by acidity and bacteria, causing tooth discolouration (and tooth decay). Please note that if you are a long-term smoker, it will not be easy to make your teeth shine again. In some cases, composite or ceramic veneers will be the only solution.
So if you use any of these products, be vigilant and make sure you brush, floss, and visit your dentist regularly!