When Dry Mouth Needs a Doctor, Not a Supplement

Signs that call for professional advice

An occasional dry mouth after a long flight or a night of snoring is common. Dryness that lingers for weeks, keeps returning or interferes with eating, speaking or sleeping is different. So is dryness that comes with a sore or cracked tongue, a burning feeling, frequent mouth infections or a bad taste that will not clear.

See a dentist or doctor promptly for pain, persistent bleeding, swelling, loose teeth, mouth sores that do not heal, or any symptom that worries you. You do not need to know the cause before asking. Describing what you notice is enough to start.

• Dryness lasting several weeks
• Difficulty chewing, swallowing or speaking
• Mouth sores that do not heal
• Swelling, pain or loose teeth
• Dryness that began after a new medicine

Dentist or doctor: who comes first?

If you notice teeth sensitivity, new rough spots or gum changes, start with your dentist, who can examine the mouth and tell you whether the dryness is affecting your teeth. If you also have symptoms elsewhere, such as dry eyes, ongoing thirst or fatigue, a doctor is the better first call, since dry mouth can accompany conditions that need medical assessment.

Either professional can point you to the other. What matters is not to leave it, and not to assume it is only a habit problem. Neither of them will mind you asking.

Why a supplement does not answer the question

A supplement cannot tell you why your mouth is dry. Causes range from everyday habits to medicines to health conditions, and only an examination or testing can separate them. Taking something for the symptom can delay the visit that would actually explain it.

That applies to ProDentim as much as to any product. The seller sells it as a dietary supplement and says its statements have not been evaluated by the FDA and it is not intended to diagnose, treat, cure or prevent any disease. Treat it as, at most, an optional extra to discuss, not a substitute for finding the cause.

If you are still weighing a probiotic

Some readers want to ask about a chewable oral probiotic anyway, and that is a reasonable thing to raise. The seller describes ProDentim as one tablet chewed slowly each morning, lists three named strains and a total of 3.5 billion organisms, and gives no per-strain amounts. Its other listed ingredients are inulin, malic acid, tricalcium phosphate and peppermint.

Evidence on oral probiotics is still developing and mixed. Anyone who is pregnant or breastfeeding, takes medicines, has a medical condition or allergy, or is buying for a child should ask a dentist, doctor or pharmacist first. It does not replace brushing with fluoride toothpaste, cleaning between teeth or dental checkups.

Preparing for the appointment

A short note beats memory. Write down when the dryness began, whether it is worse at night or after certain foods, what you take (including vitamins and supplements), and what you have already tried. Mention any recent changes in medicines or health.

Ask what might be causing it, whether tests are needed, how it could affect your teeth, and what to use at home in the meantime. Your next step: call your dental office or doctor this week, say the dryness has lasted, and book a visit.

Questions readers ask