The main causes of dental pain include physiological and pathological such as dental diseases, oral and maxillofacial diseases, other diseases and so on. 1. Physiological factors: teeth and gums are relatively sensitive, so if you eat too hot, cold, stimulating food, may stimulate the dental nerve pain, mostly normal physiological phenomenon, can be relieved since the disappearance. 2. Pathological factors (1) Dental diseases: such as pulpitis, periodontal abscess, dental caries, apical periodontitis, dental trauma and other stimulation or destruction of teeth to produce pain symptoms. (2) Oral and maxillofacial diseases: such as maxillofacial inflammation, infection, tumor and other invasions of the teeth can cause dental pain. (3) Other diseases: such as thyroiditis, cervical spondylosis, carotid artery pain, acute myocardial infarction, acute angina pectoris, etc. caused by associated pain can also cause tooth pain. The causes of tooth pain are not limited to the above factors, so it is recommended to consult a doctor in time to find out the causes of tooth pain, and then actively target treatment to avoid delaying the condition.