Orthodontics 2 [SK/O-DM2/15]

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

Author: Renáta Urban, Vladimíra Schwartzova

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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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A two stage non extraction treatment of distoocclusion with proclination of upper incisors (AII/1)

Author: Renáta Urban, Vladimíra Schwartzova

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A two stage treatment of distoocclusion with proclination of upper incisors (AII/1) is very efficient in correctly indicated cases and the timing of the treatment is essential. During the growth spurt the removable functional appliance is placed in the mouth (in this case bionator) to provide the bite shift to AI class and to raise the deep bite by correctly trimmed functional appliance. The second phase of the treatment with fixed appliance is reduced and only the anomalies of the position of individual teeth are corrected.

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Combined orthodontic-surgical treatment of impacted teeth

Author: Renáta Urban, Vladimíra Schwartzova

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Impaction or impacted tooth is a tooth that didn’t erupt into its position in the right time of his physiological eruption, is covered by bone and requires treatment. After precisely locating the position of impacted tooth, the appropriate orthodontic appliance is adapted, the space for impacted tooth is created. With surgical exposure of the tooth, the crown is uncovered and eruption chain is adapted. The pull is activated by elastic thread or other auxiliaries such as Kilroy spring or Monkey hook, that help to move the tooth into required position.

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