Xerostomia (Dry Mouth)

Dry mouth due to insufficient saliva

Written by: Saygı Hospital Health Guide Editorial Board

Last updated: June 9, 2026

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Ağız ve Diş Sağlığı department. Book Appointment →

What is Xerostomia (Dry Mouth)?

Saliva moistens the oral mucosa, provides antimicrobial protection, initiates digestion, and protects teeth against acids. Decreased saliva (hyposalivation) or change in its composition increases the risk of caries and infection.

Medications (antihistamines, antidepressants, antihypertensives) are the most common cause. Sjögren's syndrome, head-neck radiotherapy, and diabetes are important systemic causes.

Treatment of xerostomia should be directed at the underlying cause; supportive measures should be continued to protect dental health.

Symptoms

Persistent feeling of dry mouth

Difficulty swallowing food (need to wash down solid foods with liquid)

Difficulty in speaking

Burning, pain, and taste alteration

Frequent dental caries attacks

Lip cracking and cracks at the corners of the mouth

Risk Factors

Multiple medication use (antihistamine, antidepressants, diuretic)

History of head-neck radiotherapy

Sjögren's syndrome and other autoimmune diseases

Diabetes

Anxiety and stress (transient dry mouth)

Excessive smoking and caffeine consumption

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

If dry mouth lasts longer than 2 weeks
Difficulty in swallowing or speaking
Frequent recurrent dental caries
If dry eyes are also present (Sjögren's suspicion)
Pre-treatment dental evaluation in patients planned for radiotherapy

Treatment Methods

Drinking plenty of water and keeping the mouth moist

Sugar-free gum or candy (saliva stimulation)

Artificial saliva sprays and gels

Pilocarpine or cevimeline (M3 agonist, by prescription)

High-fluoride toothpaste (caries protection)

Changing the causative drug (by doctor's decision)

Which Department to Visit?

You can visit our Ağız ve Diş Sağlığı department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Ağız ve Diş Sağlığı Department

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You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.