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www.reference.com/article/function-saliva-5a54ee8cd83b7b9

The enzymes in saliva initiate the digestion process of ingested food and break down food particles that accumulate in dental crevices, protecting teeth from bacterial decay. Saliva also functions as a lubricant, permitting swallowing and preventing desiccation of the d...

www.reference.com/article/enzyme-saliva-3bec61ff43eaa695

Salivary amylase, also referred to as ptyalin, is the name of the enzyme found in saliva. Digestion of food begins in the mouth, and this enzyme is instrumental in beginning this process.

www.reference.com/article/cause-excess-saliva-6fec808f8be4e883

Excessive saliva is caused by an increase in the body’s saliva production or a decrease in a person’s ability to swallow or keep saliva in the mouth, says Mayo Clinic. Some causes of increased saliva production include improperly fit dentures, gastroesophageal reflux di...

www.reference.com/article/saliva-acidic-basic-17d4de9d6d5ea090

Healthy saliva is neutral and non-acidic, with a PH reading of 7.0 or higher. The PH of saliva can change depending on what food and beverages are consumed.

www.reference.com/article/much-saliva-produced-day-a3fb0490bce8bec6

The average human mouth produces approximately 2 to 4 pints of saliva a day. Saliva is produced by several major and minor glands located in different areas in the mouth and circulates through tubes known as salivary ducts.

www.reference.com/article/saliva-acid-base-ce2d8f09ff262b57

Depending on dietary and health factors, saliva can be an acid, a base or neutral. If the body operates within a normal range, the pH level of saliva stays between 6.5 and 6.8, which makes it slightly acidic.

www.reference.com/article/can-hiv-saliva-ee12b518ed2918e6

According to the Centers for Disease Control and Prevention, HIV is not spread through saliva. HIV is not transmittable through close contact such as kissing, hugging and using the same dishes or drinking glasses.