When a child develops the appearance of lower teeth wrapping around the upper teeth, it is not conducive to eating as well as facial aesthetics. You can correct the direction of tooth growth by correcting lifestyle habits and wearing movable braces. 1. Corrective habits: Mothers should focus on correcting the posture of breastfeeding the child. Avoid putting the child to sleep with a bottle or pacifier. Help the child to correct habits such as tongue spitting and finger eating. 2. Orthodontic braces: Use the double curved tongue spring to push the upper front teeth to move towards the lips and cheeks. Push the bilateral molar teeth to move to the buccal side to increase the width of the maxilla. Apply devices such as extraoral arch, chin pocket, and anterior traction when necessary. Stimulate full development of the maxilla and inhibit overdevelopment of the mandible. If your child develops dental growth deformities, you need to seek medical attention as soon as possible to avoid causing growth deformities.