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Orthodontic Conditions

Overjet

Overjet is the size of the horizontal space between the upper and lower front teeth when the back teeth are biting together. Ideally the upper and lower front teeth should touch each other.

The increase in overjet may result from a number of factors: hereditary factors or the individual growth pattern; environmental factors such as thumb sucking; or lower lip sucking, and trauma to either the teeth or jaws may affect the amount of overjet present.

This space between the upper and lower front teeth may be as a result of the top teeth (jaw) being too far forward, or the lower teeth (jaw) being too far back (retrusive), or a combination of both.

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