Klasse II Div. 1
,
Erhöhter Overjet
,
Mandibuläre Retrognathie
,
Asymmetrische Zahnbögen
,
Maxilläre Mittellinien-Abweichung
,
Mandibuläre Mittellinien-Abweichung
,
Mittellinienverschiebung
,
Engstand
,
Rotationen

Distalisation
,
 Nivellierung der Spee-Kurve
,
Intrusion
,
Expansion
,
Retraktion
,
First premolar extraction
,
Lückenschließung
,
Elastics: Klasse II
,
Elastics: Klasse III
,
Extraktion
Courtesy of Dr W. Li, 2021
Before picture of treatment

Treatment Summary

Patient Information

  • Age: 118
  • Gender: female
  • Invisalign Submission Option: Invisalign Comprehensive

Total Treatment Time

  • 21 monate

Anzahl der Aligner

  • Maxillary: 40 + 19 + 16 = 75
  • Mandibulary: 40 + 18 + 30 = 88

Retention

  • Maxillary: Other
  • Mandibular: Other

Results achieved

  • Klasse I-Relation erzielt
  • Klasse I-Relation erhalten
  • Normaler Overjet und Overbite erzielt
  • Deutliche Verbesserung des Overjet
  • Curve of Spee leveled
  • Zahnbögen begradigt und koordiniert
  • Alignment beider Zahnbögen durch De-Rotation
  • Zahnbogenform verbessert
  • Ästhetische Lachlinie wurde erzielt  
  • Alle Behandlungsziele wurden erreicht für den Fall
  • Harmonie der Zahnbögen wurde erzielt

Bemerkungen

  • This patient was Angle class I malocclusion with an obvious protrusive maxilla, slight retractive mandible, and a severe gummy smile.
  • We chose to extract 4 first premolars and use 2 anchorage screws to improve the convex profile and gummy smile.
  • We kept the strong anchorage design of G6 for the mandible.
  • For the upper arch, based on G6, we changed several optimized attachments into traditional rectangular attachments to enhance retention.
  • At the same time, the vertical overcorrection of anterior teeth was designed, and the torque overcorrection of anterior teeth was added, to help achieve better control of the torque and vertical height of anterior teeth during the progress when the anterior teeth were retracted.
  • After 26 months of aligner treatment, the patient achieved great improvements.
  • Firstly, the normal occlusal relationship was established,
  • Secondly, the profile changed from convex to straight, and
  • Thirdly, a beautiful smile curve was established and the gummy smile was relieved.
  • This case suggests that adult cases with skeletal type II convex deformity can be quickly and effectively corrected by the Invisalign system.

Images

Initial and final

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upper
lower
right
front
left
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upper
lower
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front
left
AusgangspositionFinale
Before picture of treatment
After picture of treatment
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Röntgenbilder

Ausgangsposition Finale
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