A toothache upon biting may be caused by a tooth with periapical inflammation, a high bite point, a split tooth, electrical current irritation, or an apical cyst.
1. A tooth with periapical inflammation will hurt when biting due to pus at the root tip.
2. A tooth with a filling that has an occlusal high point will be painful when you bite down on the high point.
3. A tooth fracture caused by inadvertent biting may cause pain when biting the tooth.
4. The location of dental fillings has different metals, the upper and lower teeth bite may produce current stimulation caused by tooth pain.
5. If there is a cyst at the root tip of the tooth that affects the tooth, it may hurt when you bite.
Biting teeth will be painful for many reasons, it is recommended to go to the hospital stomatology department for specific examination and treatment.