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Case Study

Class II, Div 1 – Central Incisor Protrusion and Anterior Spaces (SureSmile® Aligners)

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Patient Details

Age

16 years old

Gender

Male

Class II, Div 1 – Central Incisor Protrusion and Anterior Spaces (SureSmile® Aligners)

Patient’s chief complaint(s): Central incisor protrusion and open bite. Patient refuses palatal arch expansion (MARPE) and extractions.

This teen patient presented with Class II molars and didn’t like his open bite and how protrusive his front teeth were. From his facial photos, it appeared his mandible was retrognathic or he lacked volume in his chin. Patient records also indicated there was a functional problem as there was no incisor guidance.

See how doctors are treating Class II cases with distalization primarily and without elastics in this SureSmile aligner case shared by Dr. Armando Dias da Silva. Dr. Dias da Silva is an orthodontist with a private practice in Porto, Portugal.

> Diagnosis
> Treatment Plan
> Treatment Outcome & Follow-up
Armando Dias da Silva, DDS, MSc

Orthodontist

Private Practice in Porto, Portugal

Case Details

Date of Issue

01/01/2021

This case report is published as an inspiration for you as a clinician and not necessarily as a recommendtion from Dentsply Sirona

Diagnosis

• Class II molars

• Diastema

• Mild spacing upper and lower arches (transverse deficiency of 3.45 mm)

• Upper right first molar is in a more mesial position than the upper left first molar

• Mild maxillary transverse deficiency (3.45 mm)

• Proclined upper and lower incisors

• Unfavorable canine guidance

Treatment Plan

• Align and level with no extractions

• De-rotate and distalize upper molars

• Retrude upper incisors

• Retrocline lower incisors

• Genioplasty when adult

Treatment Outcome and Follow-up

Modalities - SureSmile® Software and Aligners

Duration - 7 months, 7 appointments

# Aligners - U: 24 L: 16

 

All main objectives were achieved:

  • Class I molars achieved with distalization and no elastics
  • No changes in condyle position
  • No maxillary expansion, respecting periodontal envelope
  • Lower incisors retroclined, improving long term stability

 

Retention: Upper arch retained with a clear retainer. Lower arch retained with a lingual retainer bonded cuspid to cuspid.

No changes in condyle position

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