When a person spikes the volleyball hard from the other team (or side), a person from the team opposite of the one who just spiked will block the ball and keep it off their si â¦ de.
Tooth decay is the destruction of your tooth enamel, the hard, outer layer of your teeth. It can be a problem for children, teens and adults. Plaque, a sticky film of bacteria, constantly forms on your teeth.
Tooth decay is the disease process that causes tooth destruction. It is caused by bacteria on the tooth surface that breaks down carbohydrates (sugars) that you eat. The breakdown products are acids that dissolve tooth structure. Left untreated the decay process can lead to toothaches, infection and tooth loss.ooth decay, often referred to as a cavity is formed when bacteria that normally exist in your mouth use carbohydrate-containing foods (cookies, candy, sweetened cereal, fruit, soda, etc.) to produce acid.