Cerebral infarction patients clenching teeth may be caused by low blood calcium, should promptly monitor the blood electrolytes, if the blood calcium is reduced should be promptly corrected, you can take calcium tablets orally, such as Diqiao, calcium in calcium, can also be slow intravenous injection of calcium gluconate to correct. Most of the cerebral infarction occurs in middle-aged and old people, and the patients usually have the medical history of high blood fat, high blood sugar and high blood pressure. Calcium antagonists are preferred for lowering blood pressure in middle-aged and elderly patients. Calcium antagonists can easily cause hypocalcemia during the application period, and severe hypocalcemia may also cause leg cramps, and may even cause tetany, and so on. Severe hypokalemia may also cause leg cramps, and may even cause tetany, etc. If patients with severe hypokalemia may cause a decrease in potassium, severe hypokalemia may cause cardiac arrest, and should be given potassium supplementation treatment in time. In addition, patients with cerebral infarction have teeth clenching, which may also be a kind of seizure caused by the infarction itself. If a seizure is considered, two or more seizures are routinely treated with antiepileptic drugs, either oral carbamazepine, phenytoin sodium, or oral valproate.