The average person produces 1.5 litters of saliva every day. Saliva plays a critical role in keeping your teeth, gums and mouth healthy. It also helps prevent tooth decay and gum disease. This is because saliva helps wash particles of food off of your teeth that could cause plaque and decay. In addition, it neutralizes acidic foods and beverages that contribute to tooth decay. When enough saliva is not produced, problems can arise. People who have dry mouth are known to have poorer oral and gum health. According to the American Dental Association, too much dryness can irritate soft tissues in the mouth, leading to inflammation and an increased risk of infection. And, as noted above, a lack of saliva means they aren’t able to easily remove food, sugar and acid from around their teeth. One other important characteristic of saliva is its richness in calcium and other minerals. This means saliva can help reverse the beginning stages of tooth decay by remineralizing teeth and repairing enamel. 
Have you concerned low level of saliva production in your mouth?
B.S.A. finds solution to help your mouth to produce more saliva with pleasant smell, wet and moisture. B.S.A. WET Oral Moisturizer is new product of B.S.A. which is designed for people with dry mouth, less saliva, and smelly.