Saliva serves an important function in oral health and actually the health of your entire body.
Every day, the average human body produces from a quart to an entire gallon of saliva a day! Actually, it is a process of recycling.
Saliva is mostly made of water, but it also includes important proteins and minerals that continously bath your teeth to prevent tooth decay and gum disease and protect your tooth enamel. Saliva even keeps your breath fresh. Saliva also contains important substances necessary for proper digestion of food.
The action of chewing stimulates salivary glands inside your cheeks and mouth to produce saliva. The more forcefully you chew, the more saliva is produced. So the more you use your teeth, the more the body is stimulated to protect them.