Class III, Posterior crossbite, Anterior crossbite, Edge to edge bite, Open bite, Narrow arches, Asymmetric arches, Maxillary midline deviation, Mandibular midline deviation, Midline shift, Crowding, Rotations

Patient Information

• Age: 18
• Gender: male
• Invisalign Treatment Option: Invisalign Comprehensive

Number of aligners

• Maxillary: 33 + 17 = 50
• Mandibulary: 33 + 17 = 50

Aligner Wear time

• Progressive aligner change interval: 14 days - 10 days - 7 days

Retention

•  Maxillary: Vivera retainer
•  Mandibular: Vivera retainer

Results achieved

• Class I relationship achieved
• Class I relationship maintained
• Functional canine guidance on both sides
• Anterior crossbite corrected
• Posterior crossbite corrected
• Normal overjet and overbite achieved
• Overjet improved
• Significant improvement of overbite
• Significant improvement of overjet
• Midlines coincident
• Proper axial inclination of incisors
• Curve of Spee levelled
• 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

• Upper and lower wisdom molars were extracted pre-Invisalign treatment.
• The lower wisdom molar extraction is a requirement in this treatment due to lower arch sequential distalisation planned at ClinCheck treatment plan.
• The hyperexpansion of upper right first premolar was corrected planning lingual movement with simultaneous torque control.
• We planned sequential lower arch distalisation to correct the class III molar and canine into class I molar and canine.
• Lower arch sequential distalisation provided space in order to retract lower anterior teeth and therefore correct crossbite of upper lateral teeth.
• The anterior overjet created allowed us to retract upper incisors and therefore correct dental biprotusion.
• Patient collaboration during total treatment time was excellent wearing full-time (22 hours/day) aligners and class III elastics.