Dry Mouth (Xerostomia) at Sandgate Family Dental

Diabetes — see diabetes and dental care
Sjögren’s syndrome and other autoimmune conditions
Past radiotherapy to the head and neck
Anxiety and stress
Dehydration

Lifestyle factors

Caffeine and alcohol
Smoking and vaping
Not drinking enough water through the day

How dry mouth raises caries risk
With reduced saliva, two things happen together. Acid exposures last longer (because saliva is not there to buffer them), and there is less mineral support for the enamel to recover between exposures. The result is faster decay, often in places we do not usually see it — at the necks of the teeth, around old fillings, and on exposed root surfaces.
This is why dry mouth patients often benefit from a more active preventive plan than the average patient.

How we assess dry mouth
At your visit we will:

Talk through your symptoms, medications, and medical history
Examine the inside of your mouth — tissues, tongue, and saliva pools
Look at any patterns of decay or wear
Check denture fit if relevant
Discuss the most likely contributors and what can be changed

Where dry mouth seems linked to a medication, we may suggest you raise it with your GP at your next review — sometimes a small change of medication or timing helps.

Practical day-to-day management
Many people manage dry mouth well with a combination of small habits.

Sip water regularly rather than waiting until you feel thirsty.
Chew sugar-free gum for around ten minutes after meals to stimulate saliva.
Limit caffeine and alcohol, both of which are dehydrating.
Use saliva substitutes or moisturising mouth gels — your dentist or pharmacist can recommend products.
Avoid alcohol-based mouthrinses, which can worsen the dryness.
Use a higher-fluoride toothpaste if recommended by your dentist.
Run a humidifier at night if you wake with a dry mouth.
Address mouth breathing where possible — check with your GP for any underlying nasal cause.

What we may add to your preventive plan
For patients with persistent dry mouth, we often build a more active preventive plan, which can include:

More frequent scale and clean visits — often every three or four months
Regular fluoride applications at routine visits
Prescription high-fluoride toothpaste
Sealing of vulnerable grooves — see fissure sealants
Close monitoring of any older restorations and crowns
Advice on diet and snack frequency — see diet and caries risk

The aim is to make sure the mouth gets every chance to recover between acid exposures, given that saliva is doing less of the work.

Who this page is for
Dry mouth information may be useful for:

Older adults on multiple medications
Patients with diabetes
Patients undergoing or recovering from cancer treatment
Snorers and mouth breathers
Patients with anxiety, who often experience a dry mouth
Denture wearers struggling with retention or sore spots — see dentures

Health funds and payment
Sandgate Family Dental is a HICAPS provider. Where you have eligible preventive cover, we can claim at the practice and you only pay any gap. Rebates depend on your individual policy and annual limits. See our preventive cover information.

Dry mouth FAQs
Will my dry mouth go away?