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Validation of Gender Identification From Frontal Sinuses Using Yoshino's Classification: A Morphometric Radiographic

Hanmandla Rajini1, Raj Kumar Badam2, Nallan Csk Chaitanya3

  • 1Oral and Maxillofacial Radiology, Panineeya Institute of Dental Sciences & Research Centre, Hyderabad, IND.

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Summary

Forensic radiology can determine gender using frontal sinus morphology. Measurements of frontal sinus size and shape in digital cephalograms showed significant differences between males and females, aiding identification.

Keywords:
discriminative function analysisforensic dentistryfrontal sinusgender determinationposteroanterior view

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Area of Science:

  • Forensic Radiology
  • Anthropology
  • Medical Imaging

Background:

  • Gender determination is crucial in medicolegal cases involving unidentified remains.
  • Frontal sinus morphology offers unique, individual characteristics for identification.

Purpose of the Study:

  • To validate gender identification using frontal sinus measurements from digital posteroanterior cephalograms.
  • To assess Yoshino's classification and various frontal sinus parameters for sex determination.

Main Methods:

  • Analysis of 300 digital cephalograms (150 males, 150 females) aged 18-30.
  • Evaluation of frontal sinus size, asymmetry, upper border outline, partial septa, and supraorbital cells.
  • Statistical analysis and discriminative analysis for gender identification.

Main Results:

  • Significant differences found in frontal sinus height, width, area, and right-sided upper border outline between genders (p<0.05).
  • Males exhibited larger mean frontal sinus dimensions (length, width, area) than females.
  • Discriminant analysis achieved 65.3% accuracy in gender identification.

Conclusions:

  • Frontal sinus morphology serves as a valuable adjunctive tool in forensic gender determination.
  • Digital cephalometry provides a reliable method for assessing these forensic markers.