Summary

Results achieved

• Class I relationship achieved
• Functional canine guidance on both sides
• Deepbite improved
• Overjet improved
• Significant improvement of overbite
• Significant improvement of overjet
• Midlines coincident
• Proper axial inclination of incisors
• Curve of Spee leveled
• Arches aligned and coordinated
• Alignment of both arches through derotation
• Arch form improved
• Aesthetic smile line was achieved 
• All treatment goals were achieved case
• Harmonic arches were achieved

Comments

• This 12 y/o male patient presented with Class II , low MPA with increased overjet (6.2 mm)and deepened overbite(4.4 mm).
• Invisalign mandibular advancement MA feature was applied after a short phase of arch development .
• 2 steps of mandibular jump were applied and vertical elastics in additional aligner stage were used for bite settling.
• Satisfactory esthetic and functional results were achieved in 24 months.
• The results show mandibular advancement is effective in treating Class II maloccusion in growing teens