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Sex prediction from morphometric palatal rugae measures
Ma Saadeh1, J G Ghafari1, R V Haddad2
1Department of Orthodontics, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon.
The Journal of Forensic Odonto-Stomatology
|January 31, 2018
Summary
Palatal rugae (PR) measurements show potential for sex prediction, with specific linear and angular measures correctly identifying gender in over 70% of cases. Further morphometric analysis is recommended alongside traditional classification methods.
Area of Science:
- Forensic Anthropology
- Dental Morphology
- Human Identification
Background:
- Palatal rugae (PR) research exists, but findings on sex dimorphism and prediction are inconclusive.
- Existing PR classification lacks precise morphometric linear and angular measurements.
Purpose of the Study:
- Assess dimensions and symmetry of the first three palatal rugae.
- Investigate sex dimorphism and predictive capability of PR measurements.
Main Methods:
- Analyzed 252 adult dental casts (119 males, 130 females) using laser scanning.
- Recorded linear and angular measurements of the first three palatal rugae.
- Utilized t-tests and logistic regression for statistical analysis.
Main Results:
- Palatal rugae showed significant lateral asymmetry in most bilateral measures.
- Males had larger values in 9 of 28 measured parameters.
- A combination of four linear and one angular measurement achieved 71.4% accuracy in sex classification.
Conclusions:
- Morphometric palatal rugae measurements show promise for sex prediction.
- Recommended to record morphometric measures alongside shape-based classifications for enhanced accuracy.
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