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Correlation between maxillary defect and facial asymmetry.

Y Huang1, W Wang2, B X Gu2

  • 1Department of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning, China.

International Journal of Oral and Maxillofacial Surgery
|January 27, 2025
PubMed
Summary
This summary is machine-generated.

Maxillary defects significantly correlate with facial asymmetry, impacting visual perception. Reconstruction priorities depend on asymmetry grade, focusing on midface soft tissue support.

Keywords:
Facial asymmetryMaxillaPhotogrammetryThree-dimensional imagingVisual perception

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Area of Science:

  • Plastic Surgery
  • Craniofacial Surgery
  • Medical Imaging

Background:

  • Maxillary defects, often resulting from tumor resection, can cause significant facial asymmetry.
  • Quantifying and classifying facial asymmetry is crucial for effective reconstructive planning.

Purpose of the Study:

  • To evaluate the correlation between maxillary defects and facial asymmetry.
  • To establish visual perception categories for facial asymmetry.
  • To guide reconstructive strategies based on defect severity and asymmetry grade.

Main Methods:

  • Stereophotogrammetry was used to capture facial data from 47 patients post-maxillary resection.
  • A landmark-independent method assessed facial asymmetry, with visual perception graded using a Likert scale.
  • Facial areas and defect magnitudes were analyzed for their influence on asymmetry perception.

Main Results:

  • Statistically significant differences (P < 0.001) in asymmetry were observed in suborbital, zygomatic, buccal, and superolabial areas across visual perception categories.
  • The magnitude of maxillary defects significantly influenced facial asymmetry perception (P < 0.001).
  • Maxillary defects substantially impact midface soft tissue symmetry, particularly in specific facial regions.

Conclusions:

  • Maxillary defects are a significant cause of midface soft tissue asymmetry.
  • Reconstruction should prioritize soft tissue support in the zygomatic, buccal, suborbital, and superolabial areas.
  • Reconstruction necessity varies by asymmetry grade: essential for grade III, optional for grade II, and generally unnecessary for grade I.