How to correct crowded front teeth, is it difficult, can it be corrected by wearing aligners, and is it easy to relapse after correction? To know how to correct crowded front teeth, we must first understand the causes of crowded front teeth. The main reason for crowded front teeth is the underdevelopment of the front part of the jaw, or the entire face and jaw are underdeveloped; in some cases, it is also possible that the jaw is developing normally and the crown is too large. Premature loss of baby teeth and anterior displacement of permanent teeth are also important causes of anterior crowding. How to orthodontic treatment of crowded front teeth, depending on the degree of crowded front teeth, generally speaking, there are the following methods can be solved: how to orthodontic treatment of crowded front teeth 1, expand the arch can be made in the inner arch of the teeth in the middle can be split, force activity orthodontic appliance, the use of the wire outreach force, the crowded teeth gradually pushed to the outside, so that the arch is expanded, there are enough places for teeth to align neatly, so as to achieve the purpose of orthodontic treatment. The purpose of orthodontic treatment is achieved. How to orthodontic treatment of crowded front teeth 2, extraction of teeth serious and can not directly use the orthodontic appliances for correction, can be used to reduce the number of teeth, generally is the extraction of chewing function less and does not affect the beauty of the side or bilateral first bicuspid teeth, and then orthodontic appliances for correction. If there are carious teeth, periodontal disease or severely misaligned teeth in the dental arch, they can also be directly extracted. In order to leave a proper space for the other teeth to be realigned.