How long can a human live without water How long can human live without food? A human can't live without food for 3 or 4 days (however your body type is,) and a human can't live without water for 2 or 3 days.
Cavities refer to tooth decay, which occurs when specific types of bacteria produce acid that destroys the toothâs enamel and its underlying layer, the dentin. Signs & Symptoms. Cavity symptoms include: 1  Toothache. 2  Sensitivity to sweet, hot or cold foods or drinks.
A tooth cavity is termed when you have decay on your tooth. The dentist has to drill it to remove the decay area. After that, tooth can be directly filled with amalgam silver material or resin white composite.ell, we have to drill because a cavity is a hole in your tooth, and there's nasty stuff (decay) in that hole that needs to be removed. However, the cavity hole is really not one we can work with-it's often too small for us to get in there and do what we have to do.