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.
Cavities is another way of saying tooth decay. Tooth decay is heavily influenced by lifestyle, what we eat, how well we take care of our teeth, the presence of fluoride in our water and toothpaste. Heredity also plays a role in how susceptible your teeth may be to decay.