Coeliac disease and the mouth: signs the dentist can spot

In short: coeliac disease (autoimmune gluten intolerance) doesn’t stay in the gut: it also leaves clues in the mouth. Enamel defects, ulcers that come back again and again or an irritated tongue can be signs. Sometimes the dentist is the first to suspect it and recommend checking with the doctor.

What signs does it leave in the mouth?

Especially if coeliac disease starts in childhood, while the teeth are forming:

• Enamel defects: whitish or yellowish marks, grooves or dull areas, symmetrical (appearing on the same teeth on both sides). It’s the most characteristic sign.
• Recurring ulcers: mouth ulcers that appear very often, more than usual.
• Irritated or smooth tongue and, sometimes, a delay in the teeth coming through.

Why can the dentist raise the alarm?

Because they see the mouth up close and often. Symmetrical defective enamel or ulcers that keep coming back can make them suspicious and suggest you check with your doctor, who is the one to confirm or rule out coeliac disease with tests. The dentist doesn’t diagnose it, but their eye can be the first warning.

Careful: it’s not self-diagnosis

Having a mark on your enamel or an occasional ulcer doesn’t mean you’re coeliac; there are many other causes. What makes sense is to mention it and, if it fits with other things (digestive, tiredness…), have the doctor assess it.

If you already know you’re coeliac

Look after your mouth as normal, but with a bit more attention: defective enamel is more prone to cavities and sensitivity. Good hygiene, fluoride and regular check-ups are more than enough to keep those teeth healthy.

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Got odd marks on your enamel or ulcers that keep coming back? Come in and we’ll take a look; if appropriate, we’ll point you towards checking with your doctor. The first visit is free: book an appointment.