Salivary duct stones are crystallized minerals in the ducts that drain the salivary glands. Salivary duct stones are a type of
Causes, incidence, and risk factors
Saliva (spit) is produced by the salivary glands in the mouth. The chemicals in saliva can crystallize into a stone that can block the salivary ducts.
When saliva cannot exit a blocked duct, it backs up into the gland, causing pain and swelling of the gland.
There are three pairs of major salivary glands:
- The two largest are the parotid glands, one in each cheek over the jaw in front of the ears.
- Two submandibular glands are at the back of the mouth on both sides of the jaw.
- Two sublingual glands are under the floor of the mouth.
Salivary stones most often affect the submandibular glands, but they can also affect the parotid glands.