When you brush your teeth, you help remove food and plaque â a sticky white film that forms on your teeth and contains bacteria. After you eat a meal or snack that contains sugar, the bacteria in plaque produce acids that attack tooth enamel. Repeated attacks can break down tooth enamel and lead to cavities. Plaque that isn't removed can also harden into tartar, making it harder to keep teeth clean. In choosing when to brush your teeth, you might also consider your diet. If you've eaten an acidic food or drink, avoid brushing your teeth right away. These acids weaken tooth enamel, and brushing too soon can remove enamel. If you know you're going to eat or drink something acidic, brush your teeth beforehand.
(sÅ­lk) intr.v. sulked, sulkÂ·ing, sulks. To be sullenly aloof or withdrawn, as in silent resentment or protest. n. A mood or display of sullen aloofness or withdrawal: stayed home in a sulk; a case of the sulks. [Back-formation from sulky.]
Sulfur or sulphur (British English; see spelling below) is a chemical element with symbol S and atomic number 16. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8.