Hello, there are many ways to correct children's teeth. First of all, if the child's teeth are crooked, simple orthodontic treatment should be performed when the child is three to five years old. Secondly, if there is bone retraction. Wear functional orthotics for treatment. You can also wear braces to straighten your teeth. The braces we use are divided into two types: steel braces and invisible braces. These are some common methods of teeth straightening.