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Class III Malocclusion Surgical-Orthodontic Treatment
Bruna Alves Furquim1, Karina Maria Salvatore de Freitas1, Guilherme Janson1
1Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, 17012-901 Bauru, SP, Brazil.
Case Reports in Dentistry
|November 29, 2014
Summary
This case report details successful orthodontic-surgical treatment for a patient with Class III malocclusion and facial asymmetry. The combined surgical approach significantly improved both dental alignment and facial aesthetics, with lasting stability.
Area of Science:
- Dentistry
- Orthodontics
- Oral and Maxillofacial Surgery
Background:
- Class III malocclusion presents significant challenges in dental and facial aesthetics.
- Mandibular and chin protrusion, along with anteroposterior and transverse discrepancies, contribute to poor facial harmony.
- Concave profile and strained lip closure are common esthetic concerns in such cases.
Purpose of the Study:
- To present a case report on the orthodontic-surgical management of a young adult with Class III malocclusion.
- To correct severe anteroposterior and transverse discrepancies, improve facial esthetics, and restore proper oral function.
- To evaluate the stability and long-term outcomes of the chosen surgical procedures.
Main Methods:
- Orthodontic-surgical treatment involving Le Fort I osteotomy for maxillary repositioning (expansion, advancement, impaction, rotation).
- Bilateral sagittal split osteotomy for mandibular counterclockwise rotation and chin projection.
- Rigid internal fixation without intermaxillary fixation for enhanced stability.
Main Results:
- Successful correction of a 5mm negative overjet and 5mm overbite.
- Significant improvement in facial profile and lip closure.
- Stable and pleasing esthetic results observed 7 years post-treatment.
Conclusions:
- Combined Le Fort I and bilateral sagittal split osteotomies are effective for correcting severe Class III malocclusion with facial asymmetry.
- The surgical technique provided excellent esthetic outcomes and functional improvement.
- The treatment demonstrated long-term stability, highlighting its efficacy.
