You have six main glands (three on each side of your mouth) that continually produce saliva. The parotid glands secrete saliva into your mouth above your upper molars. In contrast, the submandibular glands use ducts in your jaw beside your lower molars, and the sublingual glands empty saliva underneath your tongue.
Enzymes in saliva start the digestive process as soon as you chew your food. Without saliva to lubricate and soften food, chewing and swallowing is difficult. Saliva also keeps your mouth moist so that you can easily speak. Another key function of saliva is to wash harmful bacteria off your teeth and lower the acidity level in your mouth, helping to prevent tooth decay and gum disease. In addition, the calcium, phosphorus, and fluoride found in saliva help repair enamel.
A healthy person produces 600 milliliters of saliva every day, and approximately 99 percent of that saliva is water. The remaining 1 percent contains a multitude of components, such as sodium, calcium, magnesium, potassium, immunoglobulins, proteins, enzymes, and mucins. These components of saliva, while only a tiny percentage of it, serve unique functions that are central to sustaining your health.
Follow these simple tips to keep your salivary glands healthy and productive:
When your glands don't produce enough saliva to keep your mouth comfortably moistened, you may have xerostomia, more simply known as dry mouth. Everyone experiences dry mouth occasionally, especially when nervous or stressed. But many people experience dry mouth frequently due to medication side effects or more serious complications that interfere with saliva production. Symptoms of dry mouth include difficulty chewing, changes in taste, a burning sensation throughout the mouth, mouth sores, and cracked lips.
More than 500 medications (over-the-counter and prescription) can cause dry mouth or increase its severity. Decongestants and antihistamines are common culprits, and some antidepressants, blood pressure medications, sedatives, antispasmodics for cramps, and antipsychotics for anxiety can also cause dry mouth.
Drugs used to treat Parkinson's disease and prevent nausea and vomiting during chemotherapy or radiation treatment may also trigger dry mouth.
To lessen the symptoms of dry mouth, sip water throughout the day and avoid smoking and drinking beverages with caffeine or alcohol. To stimulate more saliva flow, chew sugarless gum, suck on sugarless candies or use a saliva substitute recommended by your doctor.
Sjogren's syndrome is an autoimmune disease that affects the salivary glands and may cause dry mouth or mouth sores. Dry mouth is a symptom associated with HIV, Parkinson's disease, and diabetes. Chemotherapy can sometimes make the mouth feel dry because the saliva becomes thicker.
A salivary gland infection can occur due to dehydration, chronic illness, or blockage from a salivary stone duct. Smoking or poor oral hygiene can also result in a bacterial infection of a gland.
Mumps is a viral infection that most often affects the parotid gland. Besides dry mouth, symptoms of a gland infection may include:
See a dental professional if you are concerned about a salivary gland infection or another condition affecting your body's ability to produce saliva. Remember, a wet mouth is a healthy mouth, and salivary glands are the key.
This article is intended to promote understanding of and knowledge about general oral health topics. It is not intended to be a substitute for professional advice, diagnosis or treatment. Always seek the advice of your dentist or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment.
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