If the child's front teeth have malocclusion and buckteeth, they can be corrected when the root development of permanent incisors is completed, usually at the age of 8~9. However, it should be noted that if the root development is incomplete or the orthodontic force used is too large, it may affect the development of permanent incisors and even cause harm such as root absorption.
If the child has tooth deformities such as jaw deformities, it is recommended to correct them before and during the peak growth period, about before 10~ 12 years old, when the child will cooperate better. However, if the 9-year-old child's jaw has not yet entered the peak growth period, the effect of orthodontics may not be good.
Generally speaking, the specific orthodontic time needs to be determined according to the specific situation of the child and the doctor's advice. Parents can take their children to the stomatology department and arrange the correction plan and time according to the doctor's advice.