Hello, it depends on the severity of the child's tooth deformity. Generally speaking, dental plastic surgery takes 65,438+0-3 years, and then it will be maintained for a period of time, and the retainer will be worn for a period of time (the doctor has corrected the teeth with various forces, and if it is not maintained, the shape of the teeth will gradually return to its original shape). Of course, the length of time mainly depends on the complexity of teeth. If the teeth are particularly irregular, there is a deep abdominal cover, a deep complex jaw, irregular dentition and serious occlusion, it will take longer.