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Dissection, MicroCT Scanning and Morphometric Analyses of the Baculum
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Comprehensive evaluation of three-dimensional philtral morphology.

Naoko Kishi1, Susumu Tanaka, Seiji Iida

  • 1First Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan.

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Summary

This study reveals significant sex and racial differences in philtral morphology using 3D facial scanning. These objective measurements correlate with subjective perceptions of philtral clarity, aiding cleft surgery.

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Area of Science:

  • Anthropology
  • Plastic Surgery
  • 3D Imaging

Background:

  • Philtral morphology is crucial for facial aesthetics and reconstructive surgery.
  • Understanding sex and racial variations in philtral features is essential for accurate surgical planning.

Purpose of the Study:

  • To evaluate detailed philtral morphology, considering sex and racial differences.
  • To identify objective parameters correlating with subjective judgments of philtral clarity.
  • To inform ideal parameters for philtral reconstruction in cleft surgery.

Main Methods:

  • Acquisition of 3D facial data from 55 Japanese and 20 Mexican adults (24-40 years) using a noncontacting optical surface scanner.
  • Visual classification of philtral column morphology from facial photographs.
  • 3D anthropometric analysis to identify sex and racial differences.

Main Results:

  • Predominant philtral column shape varied by sex in Japanese adults.
  • Significant sex differences in 3D anthropometric data, with a more pronounced philtrum in men.
  • Identified racial differences between Japanese and Mexican women.
  • Philtral depth and Cupid's bow central angle correlated with subjective clarity judgments.

Conclusions:

  • Comprehensive 3D analysis of philtral morphology reveals significant sex and racial variations.
  • Objective parameters like philtral depth and Cupid's bow angle can quantify subjective clarity.
  • Findings provide valuable insights for optimizing philtral construction in cleft lip and palate surgery.