Understanding Sensitive Teeth – Causes, Treatment & Prevention
Tooth sensitivity happens when the dentine – the layer beneath the enamel – becomes exposed. This allows bacteria or temperature changes to affect the inner part of the tooth, leading to sharp, uncomfortable sensations. Left untreated, it can progress and lead to inflammation of the tooth pulp. Fortunately, sensitive teeth can usually be managed with simple treatments and good daily habits.
What causes sensitive teeth?
Sensitivity happens when enamel wears down or gums recede, exposing the dentine underneath. This layer has tiny tubules that lead directly to the tooth’s nerve, causing pain when triggered by cold, heat, sweet or acidic foods.
What happens if sensitivity is left untreated?
If the exposed dentine isn’t protected, bacteria can reach the tooth pulp – the living part of the tooth – causing inflammation, pain, and in some cases, infection that could require further treatment.
How are sensitive teeth treated?
We seal the exposed dentine using one of the following:
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A filling to cover worn or damaged areas
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Dentine sealant to block sensitivity
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A concentrated fluoride varnish to strengthen and protect the tooth surface
