Outline 5 causes of dentine hypersensitivity?

1. Brushing too hard: Aggressive brushing can wear down the enamel and expose the dentin, leading to hypersensitivity. Using a hard-bristled toothbrush or brushing with excessive force can contribute to this problem.

2. Gum recession: When the gums recede, the root surface of the tooth becomes exposed. Since the root does not have a protective layer of enamel, it is more susceptible to sensitivity.

3. Tooth decay or cavities: Cavities can cause dentin hypersensitivity, especially if they are deep and close to the nerve of the tooth. Bacteria in the cavity can irritate the nerve, leading to sensitivity.

4. Teeth grinding or clenching: Habitual grinding or clenching of the teeth, known as bruxism, can wear down the enamel and expose the dentin. This can result in increased sensitivity to hot, cold, or sweet stimuli.

5. Dental procedures: Some dental treatments, such as teeth whitening, dental cleanings, or the placement of dental fillings, can cause temporary sensitivity. This is usually due to the temporary exposure of dentin during the procedure, which should resolve on its own over time.