Dry Mouth (Xerostomia)
Steven B. Horne, DDS
Dr. Steve Horne began his career at Brigham Young University obtaining his BA in English. He earned his doctorate of dental surgery in 2007 from the University of Southern California where his pursuit for academic excellence landed him on the dean's list. He was recognized for his superior clinical skills and invited to help teach other dental students in courses on restorative dentistry, prosthodontics, and tooth anatomy. During dental school, he provided dental care for underserved populations of Los Angeles and Orange County, Mexico, and Costa Rica with the international volunteer organization AYUDA. After graduation from USC, Dr. Horne entered active duty with the U.S. Army and practiced dentistry at Fort Knox, Kentucky, for four years. During this time, in 2010, he was deployed as part of a medical unit to Baghdad, Iraq, to provide dental and triage support to military and civilian workers who were involved in the effort there. During his military service, he received multiple Army Achievement Medals, the Army Commendation Medal, and served as company commander. After leaving the Army in 2011, Dr. Horne joined a private practice in La Jolla, Calif., and became credentialed with Scripps Memorial Hospital La Jolla as a dental consultant. Health and education are of paramount importance to Dr. Horne, and since 2012, he has been writing dental articles for MedicineNet and WebMD to provide accurate information about oral health to the public. He is a member of the American Dental Association (ADA), Academy of General Dentistry (AGD), California Dental Association (CDA), and the San Diego County Dental Society and American Academy of Cosmetic Dentistry (AACD). He is a preferred provider with Invisalign and spends countless hours each year pursuing continuing education in order to maintain a standard of excellence in dentistry. Dr. Horne has been married for 15 years to his wife, Christy. They have 3-year-old twins, Camille and Trent, and very recently welcomed their third child, Colette Elise, on July 6! The heart and soul of the family is Roscoe, their chocolate Labrador.
William C. Shiel Jr., MD, FACP, FACR
Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
- What is dry mouth?
- How common is dry mouth?
- What are the benefits of saliva?
- What causes dry mouth?
- What are the signs and symptoms of dry mouth?
- How do health care professionals diagnose dry mouth?
- What is the treatment for dry mouth?
- Is it possible to prevent dry mouth?
- What is the prognosis of dry mouth?
- Find a local Doctor in your town
What is dry mouth?
Dry mouth is a condition that results from a decreased volume of saliva in the mouth. Dry mouth is also called xerostomia. Xerostomia can make it difficult to speak, eat, and digest food and can lead to malnutrition. Extreme dry mouth and salivary gland dysfunction can produce significant anxiety, permanent mouth and throat disorders, and can impair a person's quality of life.
How common is dry mouth?
Dry mouth affects about 10% of all people and tends to be more prevalent in women than men. Disorders of saliva production affect elderly people and those who are taking prescription and nonprescription medications most frequently.
What are the benefits of saliva?
Saliva is an essential part of a healthy mouth and is often taken for granted. The lubricating properties of saliva provide comfort and help protect the oral tissues against ulcers, sores, and other frictional movements that accompany normal eating and speaking. Saliva neutralizes acids and helps defend against tooth decay, and bacterial, viral, or fungal threats. Saliva helps digest food and helps teeth in remineralization. Saliva is also a very essential contributor to a person's ability to taste, as it acts as a solvent for the taste stimuli. When saliva volume is insufficient, all of these functions are impaired.
What causes dry mouth?
There are many causes of dry mouth. Dry mouth most commonly occurs as a side effect of medications that cause decreased saliva production, including high blood pressure medications, antihistamines, antidepressants, diuretics, nonsteroidal anti-inflammatories, narcotics, and many others. There are over 400 commonly used medications that can cause dry mouth. Other causes of dry mouth include dehydration, radiation treatments to treat cancerous tumors of the head and neck, salivary gland diseases, removal of salivary glands, diabetes, smoking, using chewing tobacco, hormonal imbalances, mouth breathing, sleep apnea, cystic fibrosis, mumps, and autoimmune disorders such as Sjögren's syndrome, rheumatoid arthritis, HIV/AIDS, and systemic lupus erythematosus. Eating disorders, such as bulimia and anorexia, are other risk factors for developing xerostomia. Salivary production can be decreased if a major salivary duct becomes blocked, such as from a salivary stone or infection. Dry mouth will often occur during pregnancy or breastfeeding due to dehydration and hormonal changes. Other risk factors include stress, anxiety, and depression. Alzheimer's disease and Parkinson's disease often lead to dehydration, making a person constantly at risk for dry mouth. These along with stroke can cause a perception of dry mouth even if salivary function is adequate, due to the diminished ability to perceive oral sensations. Nerve damage or trauma to the head and neck can affect the nerves that provide sensation to the mouth and result in a feeling of dry mouth.
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