Dry mouth, also known as xerostomia, is an excessive dryness of mouth due a lack of saliva production (hyposialia) or decreased saliva production (asialia).
You need saliva to make your food soft and being able to be swallowed. Without a normal saliva secretion, it will be difficult for you to chew food and have a good digestion. The saliva serves to keep your mouth moist and healthy by reducing pathogenic bacteria and fungi in your oral cavity. In addition, saliva plays a vital role in the cleanliness and health of your teeth. It neutralizes the acids produced by dental plaque and gets rid of dead cells that accumulate on your gums, cheeks and tongue. It is impossible to have a fresh breath if you don’t have asialia.
What Causes Dry mouth?
Although the factors leading to dry mouth are numerous, it is important to know the cause of the problem to follow an appropriate treatment and find an effective relief; the most common causes of dry mouth include:
Cancer treatment – chemotherapy and radiotherapy can cause damage to the salivary glands and cause a serious dry mouth. Radiation to the head and neck combined with chemotherapy medications can significantly reduce the amount of saliva in your mouth. In some people, the damage can last for life.
Nerve damage – Nerve damage due to an injury or surgery to the head can lead to a lack of saliva production.
Age – as you get older, your risk of dry mouth becomes higher; this may be due to medications you are taking or oral problems related to age.
Smoking – smoking, whether cigarette smoking or chewing tobacco, can cause serious problems including oral dry mouth. In fact, if your only consequence of smoking is dry mouth, you are very lucky; tobacco usage is the major cause of oral cancer and lung cancer.
Dehydration – dehydration affects your whole body including your salivary glands. Therefore, your risk of dry mouth is higher if you are dehydrated. Some common causes of dehydration include:
- Severe burns
- Blood loss
- Excessive vomiting
- Excessive transpiration.
Diseases – Some diseases tend to affect the salivary glands therefore reducing the production of saliva. The most common include:
Sjögren’s syndrome HIV / AIDS
Alzheimer’s disease Cystic fibrosis
Rheumatoid arthritis Hypertension
Parkinson’s disease Stroke
Medications – dry mouth is often the side effect of certain medications. In general, you can have dry mouth if you take medications against:
Nausea Psychotic disorders
Urinary Incontinence Asthma
Parkinson disease Colds or Allergies
Dry Mouth Symptoms
Although you may need a health care provider to detect the cause of your dry mouth, you do not need one to tell you have the disease. In general, if your mouth does not produce enough saliva, you will notice the following:
- Frequent thirst
- Bad breath
- Sore throat
- Difficulty speaking
- Dry and sticky feeling in the mouth
- Sores or split in the mouth, inside or on the lips
- Sensation of dryness in the throat and nose
- Burning or tingling on the tongue
- Dryness and redness of the tongue
- Difficulty tasting, chewing and swallowing
Complications and Diagnosis
To be healthy, your mouth needs to be constantly moisturized, which is the role of saliva. Saliva keeps oral bacteria under control and provides the necessary oxygen to your mouth. Hence, persistent dry mouth can lead to gum disease and tooth decay. In addition, dry mouth may make it painful to wearing dentures
Dry mouth is often due to side effects of drugs. Therefore, after carefully examining your mouth, your doctor will ask you questions about treatment or medications you are taking. If the examination and the interrogatory reveal not exact cause, your doctor may recommend tests to determine the cause of the malfunction of your salivary glands. In rare circumstances, a lip biopsy (taking a small piece of tissue to your lips to examine under a microscope) may be performed to confirm or rule the presence of Sjögren’s syndrome.
Dry Mouth Treatment
In moderate forms of dry mouth, you can use a mouthwash to partially clean your mouth and keep it moist. However, it is important for your doctor to know the cause of your dry mouth to recommend an appropriate treatment. For example, if the hyposialia/asialia is caused by taking certain medications, your health care provider will adjust the dose or substitute them by other drugs that do not cause dry mouth. If the problem is a symptom of a disease, it is important to treat the disease in question.
Certain drugs such dry mouth as pilocarpine (Salagen) or cevimeline (Evoxac) can be prescribed to you to help your mouth to stimulate saliva production.
Dry Mouth Prevention
If you have dry mouth, these preventive measures can help the production of your saliva:
- Chewing regular sugar-free gum;
- Drink plenty of water to keep your mouth hydrated
- Do not breathe through your mouth, this can worsen the problem
- Chewing a small piece of ginger after slightly cooked in an oven (it is a little hot)
- Avoid sugary foods, they do not cause dry mouth but increase your risk of dental cavity
- Brushing your teeth with toothpaste containing fluoride
- Visit your dentist about every six months for routine tests
- Avoid foods containing caffeine and acids
- Avoid consumption of tobacco and alcohol (including mouthwashes that contain alcohol);
- Avoid using over-the-counter antihistamines and decongestants
- Add a humidifier in your bedroom to increase the humidity in the air
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