Question

Five functions of a saliva

Answer 1

When we chew thoroughly, the production of saliva is promoted. Saliva has the function of washing away food debris and bacteria remaining in the mouth, which leads to the prevention of caries and gingivitis.
Function of the saliva

Chemical digestion: breaks down starch by the function of “salivary amylase”
Helps chewing and swallowing
Lubricating effect: moisturizes the inside of the mouth and creates smoother speech
Solvent effect: dissolves food and allows the tongue to taste food
Cleaning effect: washes away food debris and bacteria remaining in the mouth
Antibacterial effect: Lysozyme, peroxidase and lactoferrin fight against pathogenic microorganisms
pH buffering effect: Prevents sudden changes in pH
Supplies minerals, including calcium and phosphorus, to teeth