The sensitivity is dental pain in one or more teeth, which is driven by heat, cold, sweet or even breathing in cold air.

Causes
     * Brushing strong - a strong brushing teeth would use the tooth enamel and cause tooth sensitivity.
     * Gingival recession - a loosening of the gums caused by periodontal disease, or even by a vigorous brushing, exposes the root, making teeth sensitive.
     * Gingivitis - an inflammation of the gums may be less attached to the tooth, exposing its roots.
     * Fracture - a crack or a broken tooth can expose the dentin of the tooth.
     * Grinding teeth - bruxism would use enamel.
     * Teeth whitening - products whitening can cause temporary tooth sensitivity. It disappears after treatment.
     * Mouthwash - some rinses are acidic, and a long-term use would use enamel of the tooth.
     * Acidic foods - foods containing high levels of acid, such as soft drinks, citrus fruit or tea, user enamel due to excessive consumption.
     * Recent dental treatment - including fillings (fillings), scaling, a root canal or the placement of a crown.

Prevention
     * Maintain good oral hygiene by using good technique of brushing and flossing.
     * Use a toothbrush or soft silk ultra-flexible.
     * Reduce consumption of acidic foods.
     * Avoid grinding of teeth, with a plate if necessary clausal.
     * See his dentist for a review on a regular basis.

Treatment
     * Mouthwash non-acid containing fluoride.
     * Shutters to cover the wear.
     * Symptoms more severe or persistent dental sensitivity, may require further treatment.