الفهرس 
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Abstract
This study was conducted to evaluate the dentoalveolar, skeletal and soft tissue effects of Quick Fix appliance in treatment of pseudo Class III cases.
It was carried out on 16 patients selected according to the following criteria:
•Class III incisor relationship (at least two incisors with reverse overjet) in centric occlusion due to retroclination of maxillary incisors.
•Patients were in the mixed dentition stage.
•All subjects exhibited mandibular displacement.
•No subjects had undergone orthodontic therapy of any type prior to this treatment.
•Good oral hygiene.
•No abnormal oral habits.
1-The early treatment for a few months resulted in:
-limination of mandibular displacement thus allowing the permanent dentition to be guided into Class I at the proper mandibular position.
-Creation of space for the eruption of canines and premolars
-Elimination of traumatic occlusion.
2-The primary effects were dental, combined with minimal orthopedic changes.
3-Treatment changes resulting from this study were proclination of the upper and retroclination of the lower incisors.
4-There was some increase in SNA and SNB with an increase in anterior vertical dimension.