Bite pain after filling may be caused by high bite point, periapical periodontitis, occult fracture, etc. Medication and surgical treatment are needed according to the cause. 1. Maxillofacial occlusal point is too high: if the over repair after filling may lead to occlusal point is too high, the patient may have pain when biting. At this time, it is necessary to grind the high occlusal point, which is helpful to reduce the occlusal height and relieve the occlusal pain caused by the filling. 2. Periapical inflammation: patients with periapical inflammation after filling will be manifested as occlusal pain, patients can follow the doctor’s instructions with cefixime, metronidazole and other antibiotics. In addition, patients can also take root canal treatment, microscopic apical surgery. 3. Cracked teeth: if the hidden crack filling will appear after the bite pain, if the crack does not exceed the enamel this boundary needs to be ground under the microscope cracks, and then through the light-curing composite resin bonding repair. For cracks involving dentin tubules and pulp, root canal treatment and porcelain or metal crown restoration are required. Some patients also need to be treated with hemisection. It is recommended that patients who experience occlusal pain after a filling need to seek prompt medical attention, and the doctor will treat the cause of the problem.