Class II DIV II with deep bite and arch deficiency
Patient details Age: 28 years old Gender: Female Chief complain: crowding in upper and lower teeth – shy smile
Diagnosis
Class II Div II
Deep bite (5 mm)
Moderate crowding in upper arch (7 mm)
Moderate crowding in lower arch (6mm)
Midline shift (3 mm)
Treatment planning Number of aligners: Upper: 36 aligners (3 phases) and 10 refinement (2 phase refinements) Lower: 28 aligners (3 phases) and 6 refinement (1 phase refinement) Total treatment: 18 months
Treatment objective
Align upper and lower teeth
Achieve class I molar and canine relationship
Midline shift correction
A stable Overjet and overbite
Correct the deepbite
Expansion in upper arch bilaterally and uprightning of buccal segments in lower
Decrowding through aid of IPR
Class II elastics where used for the last 5 months
Improve the Overjet and overbite
Torquing the front segments at end of treatment with the aid of ball forces
Results and conclusion posttreatment
Double retention was used at end of treatment.
Retention
Double retention was used at end of treatment.
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