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Published: 2026-06-16
Abstract Views: 22
DOI: https://doi.org/10.52163/yhc.v67iCD6.6021
Issue
Vol. 67 No. CĐ6-NCKH
Section
Articles
How to Cite
Hùng, L. T., Huyền, N. M., & Khang, N. H. (2026). Comparison of Soft Tissue Changes Following Single-Jaw and Two-Jaw Orthognathic Surgery in Patients with Skeletal Class III Malocclusion. Vietnam Journal of Community Medicine, 67(CĐ6-NCKH). https://doi.org/10.52163/yhc.v67iCD6.6021

Comparison of Soft Tissue Changes Following Single-Jaw and Two-Jaw Orthognathic Surgery in Patients with Skeletal Class III Malocclusion

Le Tan Hung1, Nguyen My Huyen1, Nguyen Hoang Khang1
1 Tra Vinh University

Main Article Content

Abstract

Objective: This study aimed to compare soft tissue changes observed in Class III skeletal deformity patients treated with either single-jaw surgery (mandibular setback via Bilateral Sagittal Split Osteotomy - BSSO) or two-jaw surgery (maxillary advancement via Le Fort I combined with mandibular setback via BSSO).
Methods: A retrospective study was conducted on 40 treated Class III patients, divided into two groups based on the assigned surgical procedure: Group I underwent single-jaw surgery involving only mandibular setback (20 patients), and Group II underwent two-jaw surgery (20 patients).
Results: Upper lip changes were observed in both groups, but the magnitude of change was significantly greater in the two-jaw surgery group. Patients in both groups showed marked improvement in facial soft tissue profiles, effectively correcting the concave facial appearance.
Conclusion: When comparing soft tissue changes between Class III patients treated with single-jaw versus two-jaw surgery, significant differences were noted in specific parameters such as facial convexity, maxillary prominence, and upper lip prominence.

Article Details

Keywords

Orthognathic surgery; Soft tissue; Skeletal Class III malocclusion.

References

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