How to prevent malocclusion in children? Childhood is an important period for the growth of oral organs. During this period, the eruption, wear and loss of milk teeth and the partial eruption of permanent teeth are also the period for the formation of malocclusion, so how to prevent the occurrence of malocclusion is an issue that parents pay special attention to. Dental misalignment can be caused by a variety of factors, but more than 60% are caused by dental replacement disorders and bad oral habits. This means that most malocclusions can be prevented. The prevention of malocclusion mainly starts from two aspects: 1. Early preventive measures are taken for malocclusion that has not yet occurred to eliminate the triggering factors. For example, when infants can sit and stand at 7-8 months of age, a straw device should be added to the bottle in time to effectively prevent the “envelope” deformity caused by feeding posture errors. The best time period for treatment is from 3 to 5 years old. The baby teeth are completed at the age of two and a half, and hard and nutritious food should be given to give full play to the function of the chewing organ. Parents do not have to worry about eating hard foods that will break their teeth, but the long-term practice of giving children only soft foods is very harmful. This period is also the formation of bad oral habits, such as finger sucking, lip biting, biting foreign objects, licking teeth, tongue spitting, open mouth breathing, sideways chewing, etc., should be found in time to patiently persuade, if necessary, to the hospital to ask the doctor to use some measures to break. Otherwise, long-term adverse abnormal force will hinder or accelerate the growth and development of certain parts, resulting in the disproportion of the whole face. During this period, if children are found to be suffering from tuberculosis, rickets, rhinitis, tonsillar hypertrophy, etc., they should be actively treated to prevent the development of bones and teeth from being affected. Around 6 years old, as permanent teeth begin to erupt, children enter the stage of medical termed “tooth replacement”, which is the “eventful season” for malocclusion to occur. Especially at this time, milk teeth and permanent teeth exist in the oral cavity at the same time, there are a variety of complex situations, sometimes parents can not clearly identify, should regularly take children to the hospital for examination, so that the problem can be detected in time, early to give appropriate and necessary treatment. At the same time, parents should pay attention to the following points: 1, timely treatment of tooth replacement disorder: each child’s baby teeth have a certain time to erupt and fall out. Milk teeth that are not shed in time and permanent teeth that erupt prematurely can lead to misalignment of the new teeth. Premature loss of baby teeth can also lead to weakened functional stimulation, underdevelopment of the jawbone and movement of the teeth next to the missing teeth, so that the gap between the teeth that have been lost becomes smaller or disappears, and when the permanent teeth grow out there is not enough space to accommodate it, making the permanent teeth misaligned. 2, timely treatment of oral diseases: children’s milk teeth in this period, wear and tear has been more serious, easy to decay, some parents or doctors think that the milk teeth will soon fall off, wait for the growth of new teeth will be good. In fact, this kind of thinking is wrong, we should treat the affected teeth in time to keep the complete tooth row, so as to improve the chewing and digestion function. The extra teeth should be extracted as soon as possible to prevent crowding. At the same time, parents should supervise children to brush their teeth in the morning and evening in the correct way and do a good job of oral hygiene care. 3, correction of the occurred malocclusion: teeth misalignment and muscle function abnormalities are closely related, and muscle function abnormalities can be corrected after muscle function training and the establishment of normal muscle function. Early correction is relatively easy, fast results, some even without orthodontic appliances can achieve better results. 4, break bad habits: children may have some bad habits at this stage, such as biting their lips, spitting out their tongues, licking their teeth, biting pencils, thinking about problems with their cheeks, etc. Parents should find out early and convince them to correct in time.