Although every child has a difference in the loss of teeth and adult teeth, the American association of orthodontic surgeons recommends that your child can be seen by orthodontist at around 7 years old. Although not every child needs to wear braces (some people may not need to wear braces), but let your child to evaluate at this age, you can let your teeth orthodontic doctors before your child's mouth has time to mature to find any big problems, and to avoid more extensive treatment in the future.