Saliva and its benefit is something we often take for granted. When production of your saliva is less than adequate it can present a number of genuine difficulties and health concerns. The bulk of saliva is derived from three pairs of glands in the mouth. They produce approximately three quarters of a teaspoon of saliva every minute during mastication (chewing) which provides lubrication to aid in chewing and swallowing. Saliva also acts as a protective layer on natural dentition, bathing the teeth with minerals to help prevent cavities. The enzymes in saliva work to limit bacterial, viral and fungal growth which, if left unchecked, can lead to infections and tooth decay.