Bad bites (malocclusions) are often passed down through families. Some may be caused by birth defects, such as cleft lips and palates. Bad bites can also be caused by the following:

  • Thumb sucking and tongue thrusting as a child
  • Extra, lost, impacted or abnormally shaped teeth
  • Dental fillings, crowns, appliances, retainers, or braces that don't fit well
  • Injury to the face and/or jaw
  • Tumors of the face and jaw