Klasse III
,
Anteriorer Kreuzbiss
,
Engstand

Distalisation
,
Extrusion
,
Retraktion
,
Lückenschließung
,
Elastics: Klasse III
,
Elastics: Vertikal
Courtesy of Dr V. Laoamata, 2021
Before picture of treatment

Treatment Summary

Patient Information

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

Total Treatment Time

  • 27 monate

Anzahl der Aligner

  • Maxillary: 24 + 56 + 14 = 94
  • Mandibulary: 24 + 56 + 14 = 94

Aligner Wear time

  • 10 days when in the lingual root torque controlling stage. 7 days in other stages.

Retention

  • Maxillary: Vivera retainer
  • Mandibular: Vivera retainer

Results achieved

  • Klasse I-Relation erzielt
  • Funktionale Eckzahn-Führung auf beiden Seiten
  •  Kreuzbiss im Frontzahnbereich korrigiert
  • Normaler Overjet und Overbite erzielt
  • Mittellinien symmetrisch
  • Richtige axiale Schneidezahninklination
  • Zahnbögen begradigt und koordiniert
  • Ästhetische Lachlinie wurde erzielt  
  • Alle Behandlungsziele wurden erreicht für den Fall
  • Harmonie der Zahnbögen wurde erzielt

Bemerkungen

  • This is a Class III spacing case.
  • When we close all lower anterior spaces, the negative overjet (aka anterior crossbite) will be resolved.
  • But according to the very thin symphysis, retraction of lower anterior teeth needs to be done carefully to prevent labial tipping of the root that causes dehiscence.
  • The power ridge feature of the Invisalign system is very effective to control root torque during retraction of lower anterior teeth.
  • We could notice that only lower incisors crowns were retracted while the roots were still in the bone.

Images

Initial and final

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

Ausgangsposition Finale
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