The natural color of our teeth is light grey or light yellow. Teeth whitening solutions can help our teeth become whiter. However, some of the food and beverages we consume daily can stain and discolor our teeth. There are two types of teeth stains, namely intrinsic stain or extrinsic stain. Intrinsic stains are caused by age, malnutrition, infections or genetic reasons. Extrinsic stains are more manageable. They are caused by the food and beverages that we consume. These stains are merely cosmetic and can be removed by proper dental care.
Acidity is another cause of teeth staining. Acidic foods and beverages, promote staining by eroding the dental enamel, this softens teeth making it easy for chromogens to latch on. A food compound known as tannins promotes staining by further boosting the chromogens’ ability to attach to the enamel.
What effect does acidity level of one cup of tea (mint), coffee (black), and soda (Coca-Cola) have on the discoloration of an egg?
If a one hollowed egg was placed in a cup of mint tea, another egg was placed in a cup of black coffee and a third egg was placed in Coca-Cola soda, then the egg that was placed in Coca-Cola soda will have the most discoloration after a five day period because the soda has a higher acidity level then the other two beverages.