Vyhledávání

Treatment of overjet by retraction of frontal teeth to temporary anchorage devices (TADs)

Increased overjet may be caused by excessive proclination of upper incisors with prominent maxilla or on the other hand by microgenia or mandibular retrognathism. The first malocclusion is in adult patients usually corrected by extraction of first premolars and successive retraction of frontal teeth. The second malocclusion in adult patients is correctly treated with orthognathic surgery.
When treating with retraction of frontal teeth, it is essential to assess the amount of anchorage needed. If the movement of distal teeth mesially is restricted, the absolute anchorage secured by TADs is needed. TADs are placed into the bone in the right position. Closed coil springs are placed inbetween the frontal segment and TADs on each side, thus retracting frontal segment without any movement of posterior teeth.

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