Excessive vertical overlap of incisor teeth called “overbite” is generally found in association with a discrepancy between the length of the upper and lower jaws. It usually results in excessive eruption of either the upper or lower incisors or both. Associated problems include:

  1. excessive display of gum tissue,
  2. lip protrusion or entrapment,
  3. biting the roof of the mouth and
  4. incisor wear.