Tooth decay, also known as cavities or caries, is a result of fermentation of sugars in the diet with bacteria present in the oral cavity. It is seen in the enamel cups of the 9th and 10th element to the upper jaw, and to a less extend in the 6th element of the upper jaw. There will be a higher risk of future damage, like the occurrence of a molar fracture, because of the damage to the internal structure of the teeth.