Dry mouth and oral health
Occasional dry mouth can happen, but persistent dry mouth deserves attention because saliva helps protect teeth and oral tissues.
Why saliva matters
The U.S. National Institute of Dental and Craniofacial Research explains that saliva helps wash away food particles, supports swallowing and supplies minerals that help keep teeth strong.
What can cause persistent dry mouth?
Medication side effects, some diseases, cancer treatments and nerve damage are among recognized causes. Because there are multiple possible causes, persistent dry mouth should not be reduced to a supplement problem.
When to get help
NIDCR advises seeing a dentist or doctor if you think you have persistent dry mouth. A clinician can help identify the cause and reduce complications such as tooth decay or oral infections.
Source
National Institute of Dental and Craniofacial Research — Dry Mouth