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.
Tags: Tooth decay Dental health Gum recession Root canal treatment. There could be only one drawback of keeping your teeth longer for life â root decay! Decay that affects the roots of the teeth close to or below the gum line is called root caries or root decay. It is most common in back teeth of lower jaw. With age our gums recede exposing the root surfaces of the teeth. This makes them more susceptible to decay. But root decay need not be exclusive to the aged.