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Related Experiment Video

Updated: Jun 16, 2026

Quantitative Assessment Protocol for Facial Soft Tissue Volumetric Changes with Stereophotogrammetry
06:26

Quantitative Assessment Protocol for Facial Soft Tissue Volumetric Changes with Stereophotogrammetry

Published on: December 9, 2025

[Evaluation of soft tissue changes after mandibular prognathism surgery].

Ewelina Gaszyńska1, Marcin Kozakiewicz

  • 1Uniwersytet Medyczny w Łodzi, Klinika Chirurgii Czaszkowo-Szczekowo-Twarzowej i Onkologicznej. ewelina.gaszynska@hotmail.com

Polski Merkuriusz Lekarski : Organ Polskiego Towarzystwa Lekarskiego
|February 4, 2010
PubMed
Summary

Orthognathic surgery using sagittal split ramus osteotomy or extraoral vertical ramus osteotomy improves facial aesthetics. Women experienced more significant soft tissue changes than men after mandibular setback procedures.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Orthodontics
  • Plastic Surgery

Context:

  • Orthognathic surgery aims to correct dento-osseous deformities for improved function and aesthetics.
  • Mandibular prognathism presents challenges in achieving optimal facial balance.
  • Patient satisfaction is a key outcome measure in orthognathic surgery.

Purpose:

  • To evaluate soft tissue alterations following surgical correction of mandibular prognathism.
  • To compare outcomes between extraoral vertical ramus osteotomy (EVRO) and sagittal split ramus osteotomy (SSRO).
  • To analyze cephalometric changes in soft tissue profiles post-surgery.

Summary:

  • Both EVRO and SSRO resulted in increased A'-B' values, indicating changes in the lower face.
  • ULA-LLA measurements showed an increase immediately and 12 months post-surgery, with a significant decrease at 6 months for SSRO.

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Last Updated: Jun 16, 2026

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  • Soft tissue changes were more pronounced in females, particularly between 6 and 12 months postoperatively.

    • Impact:

    • Provides insights into the differential soft tissue responses to two common orthognathic surgical techniques.
    • Highlights gender-specific outcomes in soft tissue profile changes after mandibular setback.
    • Informs surgical planning for mandibular prognathism to optimize esthetic and functional results.