All of these are found in the mouth. Two parotid glands are inside the cheek area. The pair of sublingual glands are under the tongue. The two submandibular glands are close to the lower jaw. Adults and children over the age of 8 years make from one half to one and a half quarts of saliva a day.
Younger children can produce as much as eight times more saliva than adults.
Drooling occurs because the saliva is not swallowed and flows out of the mouth. This usually occurs from improper, inefficient, or infrequent swallowing. It is unusual for drooling to be caused from making too much saliva. Learning to use a straw for fluids can improve drooling. Speech therapy is the preferred way to correct drooling.