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Prevention & Restorative

Chalky teeth (MIH) in children: recognising and acting correctly.

Chalky teeth are becoming more common — and often recognised too late. We explain how parents can spot MIH and what matters now.

Dr. Nazanin Böhle · HOS Editorial
5 min read22 July 2026

What are chalky teeth?

Chalky teeth — technically MIH (molar-incisor hypomineralisation) — are a disorder of enamel formation. Mainly affected are the first permanent molars and sometimes the incisors. The enamel is softer and more porous, which makes the teeth more sensitive and considerably more prone to caries.

How do you recognise MIH?

  • Whitish-yellow to brownish spots on the molars or incisors
  • Teeth that react sensitively to cold, heat or brushing
  • Enamel that crumbles easily — sometimes rapid loss of substance despite good care

The exact cause is not yet fully understood. The enamel forms very early, which is why MIH can hardly be actively prevented — making it all the more important to recognise it early.

What helps?

  • Early detectionRegular check-ups detect MIH early — before larger damage occurs.
  • Protect more intensivelyIntensified prophylaxis, fluoridation and sealing if needed make the sensitive enamel more resistant.
  • Treat in timeWith greater loss of substance, fillings or — in pronounced cases — a crown help to preserve the tooth.
A gentle approach matters

MIH teeth can sometimes be harder to anaesthetise and hurt more easily. That is why a sensitive, child-friendly approach — and building trust — is especially important.

Have you noticed spots or sensitive teeth in your child? Have it checked early. You can find more about the first dental visit, dentistry for children and prophylaxis on our pages — or arrange an appointment at Löwenplatz in Zurich.

This article is for general information only and does not replace individual dental advice. Whether and which treatment is right for you is something we determine in a personal consultation based on your individual situation.

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