What causes a gap between teeth?

A tooth gap can develop for several reasons, including:

  • Teeth that are small compared with the size of the jaw
  • Missing teeth
  • Gum disease or bone loss
  • A thick or low-attached piece of tissue between the front teeth (lip-tie)
  • Thumb-sucking or tongue-thrusting habits
  • Teeth that have shifted over time

Your dentist will first determine why the gap is present before recommending treatment.