Orthodontic Disorders

Crossbite

Crossbite can occur in the front and/or the sides of the mouth. One or more upper teeth close on the inside of the lower teeth. This can occur with a single tooth or multiple teeth. Early correction of crossbite is recommended.

Crossbite should be corrected because it can:

• cause premature wear of the teeth
• cause asymmetrical development of the jaws
• cause dysfunctional chewing patterns
• make your smile less attractive

How can a crossbite be orthodontically corrected?

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

Openbite

Openbite is an insufficient vertical overlap of the teeth. It is caused by oral habits such as tongue thrust, finger sucking or when the jaws don't grow evenly. Timing of treatment is critical to the overall success of the therapy.

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 cases surgical correction of the jaws. Also, breaking oral habits, such as finger sucking, will facilitate the correction of an openbite.

Overbite

Overbite occurs when the upper front teeth overlap the lower front teeth in the vertical plane. Often you cannot see the lower incisors. Overbite is due to an over eruption of the front teeth or over development of the bone that supports the 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 tissue of the upper palate leading to tissue problems
• unusual wear of the lower front teeth
• make your smile less attractive

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.

Overjet

Overjet is also known as protrusion. It is where the upper teeth are too far forward of the lower front teeth. This condition is also commonly known as “buck teeth”. This can be caused by an improper alignment of the molars (Class II Relationship), 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 or finger sucking or tongue thrusting can exacerbate 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

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.

Underbite

An underbite or underjet occurs when the lower teeth protrude past the upper 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 lower incisors, missing upper teeth or a combination of all the above. Early correction of underbite is recommended.

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

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.