Tooth pain when knocking, clinically known as knocking pain, may be periodontitis, apical periodontitis, dental trauma, dental occult fracture and other causes.
1. Periodontitis: plaque bacteria invade the periodontal tissues and inflammation occurs, resulting in red and swollen gums, periodontal pockets overflowing with pus, loose teeth, teeth hurt when knocking and other symptoms.
2. Periapical periodontitis: When acute inflammation occurs in the periapical area, it can cause pain around the root of the tooth when knocking on the tooth.
3. Dental trauma: when the tooth is hit by external force, there is pain when knocking on the tooth, which needs to be diagnosed by perfect X-ray.
4. Hidden fissure: There is a hidden fissure in the tooth that extends to the dentin, so it hurts when you knock on the tooth.
The tooth pain when knocking, there may be other reasons, it is recommended to consult a doctor to clarify the cause of the disease, and then give treatment.