Class II div 2
,
Edge to edge bite
,
Increased overjet
,
Mandibular retrognathia
,
Crowding

Distalization
,
Mesialization
,
Intrusion
,
Retraction
,
Proclination
,
First premolar extraction
,
IPR
,
Elastics: Class III
,
Extraction
Courtesy of Dr W. Li, 2023
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 27
  • Gender: male
  • Invisalign Submission Option: Invisalign Comprehensive

Total Treatment Time

  • 23 months

Number of aligners

  • Maxillary: 47 + 29 + 22 = 98
  • Mandibulary: 47 + 29 + 22 = 98

Aligner Wear time

  • 1-week

Retention

  • Maxillary: Vivera retainer
  • Mandibular: Vivera retainer

Results achieved

  • Class I relationship achieved
  • Normal  overjet and overbite achieved
  • Significant improvement of overjet
  • Proper axial inclination of incisors
  • Arches aligned and coordinated
  • Arch form improved
  • Aesthetic smile line was achieved 
  • All treatment goals were achieved case
  • Harmonic arches were achieved

Comments

  • The patient's chief complaint was that he wanted to improve his convex profile. His mental muscles were tense when he closed his lips. The molar relationship is Angle class I malocclusion. The upper and lower dental arch had mild crowding.
  • Analysis of his lateral radiographs revealed that his upper and lower anterior teeth were protrusive (U1-SN 114°; L1-MP 110°). His maxilla was skeletal protrusive (87°) and the mandible plane was low angle (SN-MP 25°). The 4 first premolars were extracted to improve the convex profile.
  • Based on G6, several optimized attachments were changed into traditional rectangular attachments to enhance retention.
  • At the same time, the vertical over-correction of anterior teeth was designed, and the torque over-correction of anterior teeth was added to help achieve better control of the torque and vertical height of anterior teeth throughout the treatment.
  • Two TADs were used to enhance the molar anchorage.
  • Finally, his profile was improved, and a good occlusion relationship was achieved.

Images

Initial and final

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upper
lower
right
front
left
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upper
lower
right
front
left

Progress

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upper
lower
right
front
left
InitialFinal
Before picture of treatment
After picture of treatment
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Radiographs

Initial Final
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