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Dry Mouth

25 / 09 / 2025

Dry mouth (also known as xerostomia) is more than just a nuisance. It can affect your comfort, your dental health, and your quality of life. In this article, we’ll explain the main causes, key symptoms, and practical remedies you can start using right away.

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Dry Mouth: Causes, Symptoms & Remedies

Dry mouth (also known as xerostomia) is more than just a nuisance. It can affect your comfort, your dental health, and your quality of life. In this article, we’ll explain the main causes, key symptoms, and practical remedies you can start using right away.

What Is Dry Mouth?

Your mouth feels dry when your salivary glands don’t produce enough saliva. Saliva is vital — it helps with chewing, swallowing, speaking, and protecting your teeth by neutralising acids and washing away food debris.

Without enough saliva, oral tissues can become irritated, and your risk of tooth decay, gum disease, and oral infections increases.

Common Causes of Dry Mouth

Dry mouth may happen occasionally, but persistent dryness usually points to an underlying cause. Here are common factors:

Medication Side Effects

Many prescription and over-the-counter drugs list dry mouth as a side effect. This includes medications for blood pressure, depression, allergies, urinary incontinence, and more.

Dehydration & Fluid Loss

Not drinking enough, excessive sweating, vomiting, diarrhoea or illness can reduce overall body fluid and limit saliva production.

Breathing Through the Mouth & Nasal Blockage

If your nose is blocked, or you habitually breathe through your mouth—especially at night—your oral tissues may dry out.

Hormonal Changes & Other Factors

As we age, we often take more medications and body systems change, which increases dry mouth risk. Some women going through menopause report oral dryness.

Medical Treatments & Diseases

  • Radiotherapy , Immunotherapy and chemotherapy targeting head and neck areas can damage salivary glands.
  • Autoimmune conditions such as Sjögren’s syndrome attack salivary gland tissue.
  • Diseases like diabetes, HIV/AIDS, and others may also reduce saliva.
  • Nerve damage in the head or neck may impair signals to the salivary glands.
Dry mouth

Symptoms & Signs to Watch For

Dry mouth may present in different ways. Here are common symptoms:

A dry, sticky, or parched feeling in the mouth

Saliva that seems thick, stringy, or frothy

Bad breath (halitosis)

Altered taste or reduced sense of taste

Cracked lips, dry tongue, fissures

Difficulty chewing, swallowing or speaking

Burning or soreness of oral tissues

Increased dental decay or gum problems over time If you notice persistent dryness, or dryness with pain or bleeding, you should contact your dentist or GP

Remedies & Self-Care Tips

While some causes must be addressed medically, you can adopt many everyday strategies to help ease symptoms:

Hydration & Drinking Routine

  • Sip plain water frequently throughout the day. Keep water by your bedside for night use.
  • Aim for 1½ to 2 litres (or more, unless your physician says otherwise).

Stimulate Saliva Flow

  • Chew sugar-free gum or suck sugar-free lozenges (with xylitol if available).
  • Suck on ice chips or ice lollies (don’t chew ice).

Use Moisturising Products

  • Over-the-counter gels, sprays, or oral moisturisers / artificial saliva can give relief. Choose alcohol-free products.
  • Mouthwashes made specifically for dry mouth or with xylitol may help.

Modify Diet & Eating Habits

  • Choose soft, moist foods and add gravies, sauces or liquid to dry foods.
  • Avoid acidic, spicy, salty or crunchy foods that may irritate dry tissues.
  • Sip water with meals to aid chewing and swallowing.

Sleep & Environment Aid

  • Use a humidifier in your bedroom to add moisture to the air overnight.
  • Avoid sleeping with your mouth open if possible (nasal strips may help).
  • Avoid alcohol, caffeine, and tobacco, which worsen dryness

Review Medications

If a medicine is contributing, discuss options with your prescribing doctor. They might adjust dosage or switch to an alternative with fewer side effects.

Professional & Medical Treatments

  • In some cases, your dentist or doctor may prescribe medications (e.g. pilocarpine or cevimeline) to stimulate saliva production
  • They may also run tests (blood tests, imaging, saliva flow measurement, or even salivary gland biopsy) to find the cause.
  • Regular dental checkups become more important for dry mouth patients to catch decay early.
Dry mouth man drinking water

When to Seek Professional Help

You should see your dentist or GP if:

Dryness persists despite self-care

You struggle to eat, drink or speak

Your sense of taste changes persists

You have pain, swelling, bleeding, sores or white patches

You also have dry eyes, joint pain or other systemic issues (which might suggest Sjögren’s syndrome)

Early diagnosis and management can prevent long-term damage to your teeth, gums and comfort.

Dry mouth is common but often manageable. The key is early action and combining lifestyle changes, supportive products, and professional guidance. At Abbey Mead Dental & Implant Clinic, we encourage you to talk with us if you face persistent dryness. Together, we can identify the cause and tailor a plan to protect your oral health and comfort.

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