Tooth pain can be due to dental caries, wisdom teeth inflammation, swollen gums, and so on.
1. Dental caries: when there are dental caries, due to food will be embedded in the cavity will touch the nerve of the teeth and then appear pain; drink cold water or eat stimulating food will also produce a transient pain in the teeth.
2. Inflammation of wisdom teeth: Wisdom teeth growing horizontally with offset will squeeze other teeth and cause pain; longitudinal growth may squeeze the nerve and cause pain; in severe cases, there may also be gum abscesses leading to facial swelling and pain.
3. Inflammation of the oral cavity: When oral hygiene is not clean enough, various inflammations of the oral cavity will occur, such as pulpitis, periodontitis, apical inflammation and so on.