A child with malocclusion has crowded or crooked teeth. He or she may also have 1 of these bite problems:

  • Overbite. The front teeth in the upper jaw stick out over the teeth in the lower jaw.
  • Underbite. The teeth in the lower jaw stick out over the teeth in the upper jaw.
  • Open bite. The front teeth don’t meet when the jaw is closed.
  • Crossbite. The top teeth sit behind the bottom teeth.

    Malocclusion may cause a child to have:

  • Problems eating or speaking
  • Teeth grinding
  • Loss of baby teeth too soon or very late
  • Mouth breathing
  • Tooth decay
  • Gum disease
  • Jaw joint problems