What causes sensitivity
Sharp pain with cold, hot, or sweet foods usually comes from exposed dentine — often because gums have receded and uncovered the root surface, or because enamel has worn away.
Treatment
Depending on the cause, treatment may include desensitising agents, laser therapy, protective coatings, or gum grafting to cover exposed roots for a longer-lasting result.
Prevention
Gentle brushing technique, the right toothpaste, and treating gum recession early help stop sensitivity from coming back.
Frequently asked questions
Why are my teeth suddenly sensitive?
Common causes are gum recession, worn enamel, a cracked tooth, or a cavity. An examination finds the cause so it can be treated properly.
Can receding gums cause sensitivity?
Yes. Receding gums expose the root surface, which has no enamel and is very sensitive. Gum grafting can cover it again.
Is sensitivity treatment permanent?
Treating the cause — such as covering exposed roots — gives the longest-lasting relief.
