Xerostomia , hyposalivation or dry mouth syndrome is a disorder in which too little saliva is formed in the mouth. The normal average daily production of saliva is 1.2 to 1.5 liters per day. When too much saliva produced one speaks of salivation or sialorrhoe or even hypersalivation. When too little saliva is produced it is called dry mouth syndrome or xerostomia, which can mean a lot of discomfort for the person who suffers it.
What causes to dry mouth syndrome?
- By atrophy of the salivary glands as a consequence of an impaired chewing function
- By salivary stone (obstruction of the salivary discharge pipe)
- Certain medications such as antidepressants
- By aging (sometimes by degenerative phenomena, but mainly through the ingestion of drugs)
- By benign and malignant tumors
- In dehydration from vomiting, diarrhea, or taking diuretics
- By diseases including inflammation of lacrimal and salivary glands, diabetes mellitus and Crohn's disease
- After removal of a salivary gland
- After irradiation of head and neck
- Psychogenic causes, such as stress, anxiety and depression
- Impairment of the salivary glands by an autoimmune disease