Evidence guide
Saliva and Oral Health: Why Your Mouth’s Natural Defense Matters
Saliva helps with lubrication, buffering and mineral balance, making it central to everyday oral health.
What saliva does
Saliva lubricates tissues, helps with swallowing, buffers acids and carries minerals and proteins that contribute to the oral environment.
Why dry mouth matters
Reduced salivary flow can increase discomfort and dental risk. Causes range from dehydration to medications and health conditions.
Practical support
Hydration, sugar-free gum where appropriate and professional evaluation of persistent dry mouth may help. Persistent symptoms deserve clinical attention rather than relying only on supplements.