Teeth that are sore when biting hard things may need to be solved by jaw adjustment, filling, root canal treatment or extraction, etc. It is recommended to go to the dentist for specific examination and treatment. 1. If there are superficial cracks in the teeth that cause soreness when biting hard things, you can choose to adjust the jaw, adjust the height of the bite of the teeth appropriately, and change the point of gravity to alleviate the symptoms. 2. If the hidden cracks are deeper or there are caries, the cracks or caries can be removed by grinding, and then fill the teeth to restore the occlusal relationship. 3. If the tooth already has apical inflammation, and the bite can stimulate the attack of apical inflammation, root canal treatment can be carried out to eliminate the apical inflammation through root canal treatment. 4. If the tooth is splintered, it is necessary to extract the affected tooth. It is recommended to seek medical examination and treatment in time.