Crossbite

Crossbite can occur in the front and/or the sides of the mouth. One or more upper teeth bite on the inside of the lower teeth. This can occur with a single tooth or several teeth. It is easily corrected if diagnosed early.

Crossbite should be corrected because it can:

     
 
  • cause premature wear of the teeth
  • cause gum disease including bone loss
  • cause asymmetrical development of the jaws
  • cause dysfunctional chewing patterns
  • make your smile less attractive
 
     
 
     
 

Early correction of cross bite is recommended.

How can a crossbite be orthodontically corrected?

If there is a single tooth crossbite, the tooth can be moved with braces into the correct position. In some cases, a retainer with springs can be utilized. When several multi teeth are in crossbite, the arch needs to be expanded with braces or other intra-oral appliances.

Classification of Teeth Overview

For a brief overview of the classification of teeth, please click on the image below. It will launch our flash educational module in a separate window that may answer some of your questions about the classifications of teeth.

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Openbite

Openbite is “an insufficient vertical overlap of the teeth”. It is caused by oral habits such as tongue thrust, finger sucking or irregular growth of the jaws. Timing of treatment is critical to the overall success of the therapy. Early correction of open bite is recommended.

How can an openbite be orthodontically corrected?

Openbite can be corrected through growth modification of the jaws using braces, extrusion of the front and anterior teeth and, in some adult cases, surgical correction of the jaws. Also breaking oral habits, such as digit sucking, will facilitate the correction of an openbite.

Overbite

Class II Overbite

Overbite occurs when the upper front teeth protrude over the lower front teeth. Often you cannot see the lower front teeth.  Overbite is also known as a deep bite. Overbite should be corrected because it can:

     
 
  • cause improper functioning of your front teeth
  • result in the lower front teeth biting into the gum of the upper palate 
  • unusual wear of the lower front teeth
  • cause jaw or joint problems
  • make your smile less attractive
 
     

Early correction of overbite is recommended.

How can an overbite be orthodontically corrected?

Overbite can be corrected through moving the front teeth up and/or bringing the back teeth together, which will "open" the bite so the teeth are properly aligned and the deep bite is eliminated. An appliance is sometimes needed.

Overjet

Class II Overjet

Overjet is also known as protrusion. In this case, the lower teeth are too far behind the upper front teeth. This can be caused by an improper alignment of the molars, a skeletal imbalance of the upper and lower jaw, flared upper incisors, missing lower teeth or a combination of all the above. In addition, oral habits such as thumb sucking, finger sucking or tongue thrusting can worsen the condition.

Overjet should be corrected because it can:

     
 
  • prevent proper functioning of the front teeth
  • lead to premature wear
  • make your smile less attractive  
 
     

Early correction of overjet is recommended.

How can overjet be orthodontically corrected?

Overjet can be corrected through growth modification using a functional appliance and/or elastics to reduce the skeletal imbalance or sometimes by extraction of some teeth.

Underbite

Class III Underbite 

The lower teeth protrude past the front teeth. An underbite is usually caused by undergrowth of the upper jaw, overgrowth of the lower jaw, or a combination of the two (Class III Relationship). Underbite can also be caused by flared upper incisors, missing lower teeth or a combination of all the above.

Underbite should be corrected because it can:

     
 
  • prevent proper functioning of the front teeth or molars which can lead to premature wear of the teeth
  • cause chewing or eating problems
  • cause jaw or joint problems
  • make your smile less attractive
 
     

Early correction of underbite is recommended.

How can an underbite be orthodontically corrected?

Underbite can be corrected through growth modification of the jaws, extraction of teeth and in some cases, surgical correction of the jaws.