The long incisors may be due to irregularities, but we cannot rule out pathologic factors such as periodontitis, trauma, etc. Orthodontic treatment, periodontal treatment, etc. are needed for different situations. 1. Dental irregularities: If the incisors are long due to dental irregularities, the upper incisors can be depressed through orthodontics, or through orthognathic surgery. Reduce exposed teeth and gums while wearing braces and adjusting them regularly. The outer enamel of the teeth can also be removed to shorten them properly. 2. Periodontitis: the most common symptom of periodontitis is gum recession, resulting in the crown of the tooth is getting longer and longer, so that the incisors are too long. At this time, the patient needs to go to the dental specialty hospital in time, the inflammation of the periodontium for thorough periodontal system treatment. 3. Trauma: It can cause the incisors to come out, which will lead to the situation of long incisors. It is necessary to consult a doctor in time and correct the symptoms. If the patient’s symptoms fail to improve through the above methods, it is recommended to consult a dentist in time, under the guidance of the dentist, improve the relevant examination, clarify the cause of the disease and symptomatic treatment.