Class II div 2
,
Increased overjet
,
Mandibular retrognathia
,
Deep bite
,
Narrow arches
,
Mandibular midline deviation
,
Midline shift
,
Crowding
,
Rotations
,
Pre-restorative

Distalization
,
Leveling Curve of Spee
,
Extrusion
,
Intrusion
,
Expansion
,
Proclination
,
Other extraction
,
IPR
,
Elastics: Class II
Courtesy of Dr K. Fei Fong, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 18
  • Gender: female
  • Invisalign Submission Option: Invisalign Comprehensive

Total Treatment Time

  • 17 months

Number of aligners

  • Maxillary: 43 + 9 + 9 = 61
  • Mandibulary: 24 + 10 + 9 = 43

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Other clear
  • Mandibular: Other clear

Results achieved

  • Class I relationship achieved
  • Functional canine guidance on both sides
  • Normal  overjet and overbite achieved
  • 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 is a very severe deep bite Class II div 2 case.
  •  18 was extracted to ensure that UR distalization could be performed smoothly.
  •  The lower anterior intrusion was done successfully to level the lower arch Curve of Spee and resolve deep bite problem. Sequential intrusion protocol was used to perform lower anterior intrusion.
  • 26 full zirconia crown was fabricated after aligner treatment.
  •  Both upper and lower esthetic crown lengthening was performed to increase clinical crown for better smile pattern.

Images

Initial and final

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upper
lower
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front
left
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lower
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front
left

Progress

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lower
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front
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InitialFinal
Before picture of treatment
After picture of treatment
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Radiographs

Initial Final
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