Occlusal tooth pain may exist occlusal high spots, cryptic cracks, periodontitis, periapical periodontitis, etc. Depending on the situation, we will choose to adjust the occlusion, full crown restoration, periodontal treatment, root canal treatment, etc. 1. Occlusal high spots: The teeth have occlusal high spots, which cause pain when biting, and timely adjustments can reduce the tooth pain. 2. Cracked tooth: Cracked tooth with occlusal pain needs to be restored with full crown in time. 3. Periodontitis: When periodontitis is severe, the gums shrink and expose the roots of the teeth, which will also cause biting pain, and periodontal treatment is needed according to the situation. 4. Periapical periodontitis: when the teeth will have occlusal pain in the case of periapical periodontitis, it is best to carry out root canal treatment on the teeth, and the symptoms of occlusal pain will disappear after the inflammation at the root tip is eliminated. It is best to go to the hospital in time to see a doctor for a clear cause of the bite pain, and then actively treat the tooth, in order to facilitate the recovery of the condition.