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.
oral cavity - the opening through which food is taken in and vocalizations emerge; he stuffed his mouth with candy. mouth, oral fissure, rima oris. teeth, dentition - the kind and number and arrangement of teeth (collectively) in a person or animal. glossa, lingua, tongue, clapper - a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity. mouth - the externally visible part of the oral cavity on the face and the system of organs surrounding the opening; she wiped lipstick from her mouth.