A neat tooth can make people get what they want, and they often laugh. For many patients and their families who have not corrected their teeth or are about to correct their teeth, they don't understand why they need to pull out their teeth to correct their teeth. It is often difficult for them to understand and accept the need for tooth extraction to correct their teeth. When the dentition is crowded, the teeth are arranged irregularly, such as the most common "tiger teeth", and the serious lower incisors are not crowded, so one tooth needs to be extracted to provide a gap; Some people have very prominent teeth, and their mouths and lips are convex, which is what people often say, "buck teeth and burst teeth." Need to extract teeth to correct front teeth, so that the mouth and lips will look flat; Others, although crowded and the dental arch is not too serious, have poor occlusion of the posterior teeth and low chewing efficiency, which may cause damage to the temporomandibular joint in front of the ear and require tooth extraction for correction. Due to the crowded dentition and prominent lips in Beijing, there are many tooth extraction corrections, accounting for about 65% of orthodontic patients, so patients and parents need not be overly nervous about this. To sum up, tooth extraction has three main purposes, that is, to relieve the crowding of dentition, reduce tooth protrusion and adjust the occlusal relationship between upper and lower dentition. It should be noted that at the end of orthodontics, the doctor will close the tooth extraction gap completely, and there is no residual gap in the dentition. However, tooth extraction is a relatively complicated treatment after all, and doctors should carefully analyze all the data of patients in order to determine a strict and reasonable treatment plan. The doctor suggested that orthodontics must go to a formal and elegant plastic surgery hospital for treatment, so as to achieve good results. more