Dry mouth and oral health

Xerostomia, or dry mouth is caused by a decrease in the flow or production of saliva. The mouth feels dry and uncomfortable. Dental nurses will encounter many patients with this complaint in turn it is important to be aware of the condition.

What is saliva?

Saliva is produced by the salivary glands and consists mostly of water. The salivary glands are inside each cheek towards the bottom centre of the mouth by the jawbone. In total, there are six major salivary glands with many minor ones. Saliva comprises electrolytes, mucus, cells, enzymes (e.g. amylase that breaks down starches) and various antimicrobial components.

Therefore, it is vital in maintaining oral and general health. Although everyone is unique, an adult will approximately produce two to four pints of saliva per day.