Types of Bites in Children: Overbite, Underbite, Crossbite and More

Your child's bite, also called occlusion, describes how the upper and lower teeth fit together. Spotting bite problems early can make treatment simpler and more comfortable.

What is a normal bite?

In a healthy bite, the upper front teeth sit slightly in front of the lower front teeth, and the molars fit together so the chewing surfaces meet evenly.

Common bite problems

• Overbite: the upper front teeth overlap the lower teeth too much.

• Underbite: the lower teeth sit in front of the upper teeth.

• Crossbite: some upper teeth sit inside the lower teeth, on one or both sides.

• Open bite: the front teeth don't touch when the back teeth are closed.

• Crowding: not enough room, so teeth overlap or twist.

• Spacing: gaps between teeth.

What causes bite problems?

Genetics and jaw size play a big role. Habits such as prolonged thumb sucking or pacifier use, early loss of baby teeth and mouth breathing can also affect how the teeth and jaws develop.

When should my child be checked?

The American Association of Orthodontists recommends an orthodontic check-up by age seven. Your pediatric dentist watches your child's bite at every visit and will let you know if an evaluation is a good idea sooner.

Wondering about your child's bite? Call our Westwood office at 310-388-3859.