The best time to start orthodontic treatment is when all of the permanent teeth have erupted. This is generally between the ages of 11 and 14 years. Many times your child will express concerns about gaps or overcrowding and crooked teeth. All of these can be taken care of with braces during this age range particularly when your child is excited about braces.
Problems to watch for in growing children
Anterior Crossbite
Top teeth are behind bottom teeth.
Posterior Crossbite
Top teeth are inside of bottom teeth.
Crowding
Lack of space causes crowding as teeth erupt.
Open Bite
Front teeth do not meet when back teeth are closed.
Protrusion
Upper teeth stick out beyond the lower teeth.
Deep Bite
Underbite
Lower teeth sit in front of upper teeth when back teeth are closed.
Diastema
Gaps between teeth
Oral Habits
Sucking on thumbs or fingers
Images and captions, courtesy of the American Association of Orthodontists.