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Complex clinical case with Class III and open bite: stability after seven years.

Rhita Cristina Cunha Almeida¹, Livia Kelly Ferraz Nunes¹, Ingrid Balbino Sousa Coelho Vieira¹

¹Departamento de Ortodontia, Faculdade de Odontologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.

Dental Press Journal of Orthodontics

|June 4, 2020

Summary

Nonsurgical orthodontic treatment using premolar extraction and specialized mechanics effectively corrected a 15-year-old

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Area of Science:

Orthodontics
Dentofacial Orthopedics
Skeletal Malocclusion

Background:

Class III skeletal malocclusion often requires combined surgical and orthodontic treatment.
Nonsurgical approaches are sought for patients unwilling to undergo surgery.
Anterior open bite and transverse discrepancies present complex orthodontic challenges.

Observation:

A 15-year-old male presented with anterior open bite, edge-to-edge transverse discrepancy, and Class III skeletal pattern.
Treatment involved premolar extraction, Hyrax expander, and intrusion mechanics with vertical elastics.
The patient achieved Class I molar and canine relationships, ideal overjet/overbite, and a straight facial profile.

Findings:

The orthodontic mechanics resulted in excellent facial and occlusal outcomes.
Posttreatment and 7-year follow-up radiographs confirmed the stability of the results.
This case demonstrates successful correction without surgical intervention.

Implications:

Well-controlled orthodontic treatment can be a viable alternative to surgery for specific Class III malocclusions.
Patient cooperation is crucial for achieving stable, long-term results in complex orthodontic cases.
This approach offers a successful nonsurgical option for patients refusing surgical correction.