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Class III surgical-orthodontic treatment: a cephalometric study.
Chris Johnston1, Donald Burden, David Kennedy
1Orthodontic Division, Oral Healthcare Research Centre, School of Clinical Dentistry, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom. c.d.johnston@qub.ac.uk
Summary
Surgical-orthodontic treatment effectively corrected Class III malocclusion, achieving ideal overjet in most patients. Bimaxillary surgery was most common and linked to better skeletal discrepancy correction.
Area of Science:
- Orthodontics
- Oral and Maxillofacial Surgery
- Dentofacial Deformities
Background:
- Class III malocclusion presents significant challenges in surgical-orthodontic treatment.
- Understanding treatment outcomes is crucial for optimizing patient care.
Purpose of the Study:
- To investigate treatment outcomes in Class III surgical-orthodontic patients.
- To analyze factors influencing the correction of skeletal discrepancies and overjet.
Main Methods:
- Retrospective study of 151 Class III surgical-orthodontic patients.
- Analysis of pretreatment and posttreatment cephalometric radiographs.
Main Results:
- 83% of patients achieved ideal overjet; 40% achieved ideal ANB angle.
- Bimaxillary surgery was most frequent (75%) and associated with better skeletal correction.
- Ideal SNB angle correction was less likely with maxillary surgery alone.
Conclusions:
- Surgical-orthodontic treatment demonstrates high success in normalizing overjet and soft-tissue profile.
- Bimaxillary surgery is frequently employed and improves the likelihood of ideal anteroposterior skeletal discrepancy correction.
