Nicotine pouches and snus: what they do to gums

Why the pattern is so recognisable

Most oral health risks are diffuse: diet, plaque and acid affect the whole mouth. Pouch use is different, because the product is placed in the same position, often for hours a day. The tissue at that one site receives a sustained chemical and mechanical challenge that the rest of the mouth does not.

Clinically this shows as a localised area of recession, often on a single tooth or small group of teeth, sometimes with a change in the appearance and texture of the mucosa immediately over it.

Recession is the part that does not undo

When gum recedes, root surface is exposed. Root surface is cementum and dentine, not enamel — it is softer, it decays faster, and it is more sensitive to cold and to brushing. Gum does not regrow to its previous level on its own; where coverage is needed, it requires surgical grafting, and that is not always possible or indicated.

This is why the useful advice is not 'monitor it' but 'change the site or stop', ideally before recession is established.

White patches should be assessed

Persistent white, thickened or leathery patches of mucosa at the placement site need clinical examination. In most cases these are a reaction to chronic local irritation and settle when the irritant is removed. They should still be examined, recorded and followed up, and referred where appropriate — not self-assessed.

If you use pouches

• Do not keep using the same site. Rotating position spreads the load but does not remove the risk.
• Tell your dentist, so recession can be measured and tracked rather than noticed years later.
• Have any persistent white patch, ulcer or texture change examined promptly.
• If you are using pouches to move away from smoking, discuss a route off nicotine altogether with your GP or a stop-smoking service.