As the weather gets hotter, people's demand for ice cream and cold drinks has also begun to increase. Cold food can relieve dryness and make people happy physically and mentally.

However, when some friends' teeth touch the ice, they feel sore and weak and even cause sharp pain. It disturbs. Dentin hypersensitivity is the soreness, pain, and other discomforts that occur after the teeth are stimulated.

The causes of tooth sensitivity fall into two main categories.

The first is the destruction of the integrity of the tooth tissue. In layman's terms, what everyone says is that the teeth become "thin".

For example, caries, wedge-shaped defects, night bruxism, acid erosion, and other diseases will cause tooth tissue defects, so the internal dental nerves will be stimulated by the outside world (such as cold, heat, sour, sweet, etc.) to produce sensitive reactions.

The second is a gingival recession. As the gums recede, the dentin beneath the gums becomes exposed. There are many small holes in the dentin, which lead to the tooth nerve in the center of the tooth.

Once the dentin is exposed, hot, cold, sour, and sweet food or drinks will stimulate the nerve inside the tooth, resulting in tooth sensitivity and soreness.

In addition, age, environmental climate change, and mental stress can also cause tooth sensitivity.

Tooth sensitivity is not a single disease, but a common symptom of various tooth defects. Tooth defects are commonly caused by abrasion, trauma or improper tooth brushing, etc., which damage the enamel and expose the dentin.

Some systemic diseases increase the irritability and sensitivity of nerve endings. Even if the dentin is not exposed, the teeth of the whole mouth will feel extremely sensitive and uncomfortable.

Factors that affect tooth sensitivity include the following.

Brushing too hard or using a hard-bristled toothbrush. This can wear down the enamel, exposing the dentin. In addition, if the brushing technique is not correct, it will produce a gingival recession.

Retracts gums. Exposed teeth due to periodontal disease or poor brushing technique.

Gingivitis: Inflamed, painful gum tissue can expose the root of the tooth.

Broken teeth: These become filled with bacteria called plaque, which causes the pulp to become inflamed.

In more severe cases, abscesses or infections can result.

Teeth grinding or clenching: It tends to result in wearing red enamel.

Acidic foods: If eaten in excess, they can frustrate and attack the enamel.

Dental procedures: Teeth can become more sensitive after cleaning.

Replacement of partial crowns and other dental restoration procedures. Usually, the pain goes away with time.