Dry mouth, or xerostomia, occurs when there is not enough saliva (or "spit") to lubricate the tongue, gums ... They then make small cuts or changes to the tissue to stimulate saliva flow.

A numb mouth or tongue can point to several conditions ... They will then carry out a thorough examination of the mouth. A person should see a doctor if they experience persistent numbness ...

Medically reviewed by Brian T. Luong, DMD You may need to treat a cut in your mouth after playing sports, biting your cheek ...