Orthodontic Disorders

There are a wide variety of orthodontic disorders someone can have. Luckily, there are treatment methods for each of them. Here are some of the more common disorders we encounter.


Crossbite can occur at both the front and the sides of the mouth.

It is when one or more upper teeth bite inside the lower teeth. Problems crossbite can cause include :

  • Improper wearing of the teeth.
  • Gum disease and bone loss.
  • Asymmetrical facial development.
  • Dysfunctional chewing patterns.
  • Reduced aesthetics.

Crossbite can be corrected with braces, expanders, and sometimes surgery.


Openbite occurs when the front teeth come together and prevent complete closing of the jaws.

It is often caused by poor habits such as thumb sucking and tongue thrusting. Early treatment is best as it allows the patient to avoid surgery. Braces and tooth extrusion of the anterior teeth can be used to correct this, as well as surgery.


An overbite is present when the upper front teeth protrude too far over the lower front teeth. In most cases, it is severe enough that the upper and lower front teeth do not come into contact with each other when the jaw is closed. Overbite can cause problems such as :

  • Improper tooth function.
  • Damage to the gums and upper palate.
  • Uneven wearing of the teeth.
  • Jaw and joint pain.
  • Aesthetic issues.

Overbite is usually corrected with braces that move the front teeth up and bring the back teeth together.


Overjet occurs when the lower front teeth sit too far back from the upper front teeth.

To the untrained eye, this can look like an overbite. However, what needs to be corrected is different. In this case, is the bottom teeth posing the problem, not the top teeth. It can be caused by genetic and environmental factors. Problems caused by overjet include:

  • Improper tooth function.
  • Premature wearing of the teeth.
  • Aesthetic concerns.

Overjet is best corrected during childhood using appliances. Later in life, tooth extractions and surgery are needed.


With an underbite, the lower teeth protrude past the front teeth.

This is generally due to problems with jaw growth, either the lower jaw growing too much or the upper jaw not growing enough. Underbite can cause numerous issues, such as the following:
Improper tooth function.

  • Uneven wearing of the teeth.
  • Chewing problems.
  • Jaw and joint disorders.
  • Poor aesthetics.

Underbite can be corrected through the use of appliances when treated early. In those who have mostly finished growing, surgery and tooth extraction are needed.