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MATERIALS AND METHODS

MATERIALS AND METHODS. Case 1. 14-year-old girl Problem: buccally erupting upper right canine Aim: provide space for the canine Appliance design: A removable appliance is fabricated with 2 ball clasps a labial bow finger spring to be placed between second premolar and first molar.

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MATERIALS AND METHODS

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  1. MATERIALS AND METHODS

  2. Case 1 • 14-year-old girl • Problem: buccallyerupting upper right canine • Aim: provide space for the canine • Appliance design: • A removable appliance is fabricated with • 2 ball clasps • a labial bow • finger spring to be placed between second premolar and first molar

  3. Case 2 • 13-year-old boy • Problem: upper left canine has no enough space to erupt • Aim: • provide space for the canine • prevent later malposition of canine • Appliance design: • A removable appliance fabricated with a “c” clasp, a ball clasp, and a labial bow. Two finger springs is designated to distalize second and first molars in upper left quadrant

  4. Case 3 • 9-year-old boy • Problem: • 12 & 22 have no enough space to erupt • a little space exists between upper central incisors • Aim: • prevent later malposition of lateral incisors • To close space between upper central incisors • Appliance design: • A removable appliance fabricated with four “c” clasps on upper D’s and E’s for full retention, and 2 finger springs are designed to move the upper central incisorstoward midline.

  5. Case 4 • 42-year-old female • Problem: • severe attrition due to longtermedge-to-edge incisor relationship with a very unpleasant smile • anterior crowding with labial displacement of centrals and lingual displacement of laterals • rotational displacement of centrals • Aims: • to resolve the lower anterior crowding • moving the lower central incisors lingually and the lateral incisors slightly labially • Appliance design: • A removable appliance is fabricated with • 4 “ball” clasps • a labial bow is designed to force centrals lingually and to retain the appliance • A lingual bow is included to push laterals labially, simultaneously. • Two occlusal rest on 6’s hold the appliance vertically • Finally, the patient underwent aesthetic restoration of the upper and lower incisors

  6. Case 5 • 14-year-old girl • Problem: • protruded anterior teeth with excessive overjet • Appliance design: • A Hawley retainer with a circumferential wire was fabricated for maxillary arch. • Gradual tightening of loops and simultaneous acryl reduction on the palatal side of anterior teeth permits gradual lingual tipping of anterior teeth.

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