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Orbital aperture morphometry in Indian population: A digital radiographic study
Laboni Ghorai1, M L Asha1, J Lekshmy1
1Department of Oral Medicine and Radiology, Dr. Syamala Reddy Dental College, Hospital and Research Centre, Bengaluru, Karnataka, India.
Background:
Morphological variations of the orbital aperture measurements may be used in forensic medicine as a parameter for determining sexual and ethnic identity of an individual.
Aim And Objective:
The aim and objective of this study was to evaluate the orbital aperture dimensions in Indian individuals and verify their relationship with gender.
Materials And Methods:
A retrospective study was conducted using digital posteroanterior view radiographs of 50 males and 51 females, which were taken using NEWTOM GIANO-CEFLA SC machine (81 kVp, 10 mA, and 6.6 s). The orbital aperture measurements were carried out using NEWTOM software NNT version 5.5. The maximum width and height of the orbits and the inter-orbital distance were measured. The obtained data were subjected to t-test and discriminant function analysis.
Results:
In the t-test, significant differences in orbital width and inter-orbital distance were obtained between the genders. On subjecting the data to discriminant function analysis, result was obtained with 86.1% accuracy rate in gender determination.
Conclusion:
If the discriminant score is >1.0365, the skull is likely to be of a male, and if it is <1.0365, it is likely to be of a female. Therefore, orbital aperture measurements can be used for gender determination in human identification.
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