Listen to real-life stories

---

What are eating disorders?

Eating disorders are serious and complex health conditions. They can affect anyone, at any age.

As well as affecting the body, eating disorders can also cause long-term problems with your teeth, gums and mouth.

There are different types of eating disorders, including:

• Anorexia nervosa.
• Bulimia nervosa.
• Binge eating disorder.
• ARFID (avoidant/restrictive food intake disorder).
• Pica.
• Rumination disorder.
• Orthorexia.
• OSFED (other specified feeding or eating disorder).

---

How can eating disorders affect my teeth and mouth?

Eating disorders can lead to several oral health problems, including:

• Enamel erosion.
• Sensitive teeth.
• Tooth discolouration.
• Dry mouth.
• Swollen salivary glands (often around the cheeks).
• Dry, cracked lips or sore corners of the mouth.
• Oral thrush (a fungal infection).
• Tooth wear from clenching or grinding.

---

After vomiting, my mouth feels awful. What should I do?

Do not brush your teeth straight after vomiting.

Stomach acid softens the enamel for about an hour. Brushing too soon can damage the teeth further.

Instead:

• Rinse your mouth with a fluoride mouthwash, if you have one.
• If not, rinse gently with water.
• Wait at least one hour before brushing.

Fluoride helps strengthen the teeth after acid exposure.

---

Can I still use a normal toothbrush and toothpaste?

Yes.

• Use a soft toothbrush.
• Use a fluoride toothpaste with 1350–1500 ppm fluoride.
• If your teeth are sensitive, try a sensitive toothpaste.

Your dentist may recommend a high-fluoride toothpaste if your teeth are at a higher risk of damage.

---

Can eating disorders cause bleeding gums?

Yes, they can. This may happen because:

• A restricted diet may not provide enough vitamins and nutrients.
• Plaque builds up if brushing and cleaning between teeth is difficult.

Gum disease can cause:

• Red, swollen gums.
• Bleeding when brushing.
• Sore gums.

Early gum disease (gingivitis) can be reversed with good cleaning.
More advanced gum disease can cause loose teeth.

If your gums bleed regularly, see a dental professional.

---

Do I have to tell my dentist?

You don’t have to. But it can really help.

Dentists are trained to spot signs of acid damage. If they know what’s happening, they can:

• Protect your teeth.
• Suggest the right products.
• Plan treatment safely.

They are there to support you – not judge you.

---

Can my dentist help?

Yes. Your dentist can:

• Recommend high-fluoride products.
• Provide mouthguards if you grind your teeth.
• Treat damage when you’re ready.
• Signpost you to support services.

Looking after your mouth is part of looking after your overall health.

If you are struggling, you are not alone. Support is available through healthcare professionals and specialist organisations.