How Untreated Dry Mouth Can Damage Your Oral Health

That sticky, parched feeling that won’t go away even after sipping water may be more than simple dehydration. Dry mouth (xerostomia) occurs when your salivary glands don’t produce enough saliva to keep your mouth moist. Beyond being uncomfortable, this condition can lead to serious dental and overall health problems if left untreated.

At Central Avenue Dental, serving Valley Stream, Midtown, and Tribeca in New York City, our dental team helps patients identify the root causes of dry mouth and find effective, lasting relief.

What causes dry mouth?

Occasional dry mouth can happen due to temporary dehydration or sleeping with your mouth open, but persistent symptoms often point to salivary gland dysfunction. Common causes include:

Medications

Many prescription and over-the-counter drugs (such as antihistamines, decongestants, pain medications, and antidepressants) can reduce saliva production.

Aging

While dry mouth isn’t a normal part of aging, older adults are more likely to take medications or have conditions that cause it.

Cancer therapy

Radiation to the head or neck and certain chemotherapy drugs can damage salivary glands.

Health conditions

Diabetes, autoimmune diseases (like Sjögren’s syndrome), and nerve damage can also affect saliva flow.

If your mouth often feels sticky or dry — or you’re constantly sipping water without relief — it may be time to see a dental professional.

Why caliva matters for oral health

Saliva is essential to keeping your mouth healthy. It:

• Neutralizes harmful acids that can erode tooth enamel.
• Washes away food particles and reduces bacteria buildup.
• Keeps soft tissues hydrated, helping prevent cracks, sores, and infections.
• Supports digestion, helping you chew, swallow, and taste food comfortably.
  
  

Without enough saliva, harmful bacteria can multiply, leading to tooth decay, gum disease, and bad breath.

Complications of untreated dry mouth

If left untreated, chronic dry mouth can cause:

• Persistent bad breath
• Cavities and enamel erosion
• Gum disease
• Mouth sores or oral yeast infections (thrush)
• Cracked lips and discomfort when chewing or speaking
  
  

Because saliva protects your mouth in so many ways, addressing dry mouth early is key to preventing these complications.

Treatment options for dry mouth

If you’re diagnosed with xerostomia, your dentist will tailor a treatment plan to relieve discomfort and protect your oral health. Options may include:

• Prescription medications to stimulate saliva production
• Fluoride treatments or trays to strengthen teeth and prevent decay
• Saliva substitutes like moisturizing rinses, gels, or sprays that contain xylitol
• Lifestyle changes, such as sipping water throughout the day, using a humidifier at night, avoiding alcohol, caffeine, and tobacco

Protecting your lips with a quality lip balm and maintaining good oral hygiene, including brushing with fluoride toothpaste and flossing daily, also help keep symptoms in check.

Find relief from dry mouth

Living with chronic dry mouth isn’t just uncomfortable — it can harm your smile and overall health. The team at Central Avenue Dental can help you identify the cause and create a treatment plan that brings lasting relief.

Call your nearest Central Avenue Dental location or book an appointment online today to get started.