Evaluation of Maxillary Sinus Dimensions in Gender Determination Using Helical CT Scanning

Authors

  • Asmaa T. Uthman B.D.S., M.Sc.,

    1. Department of Oral and Craniofacial Health Science, College of Dentistry, University of Sharjah, PO Box 27272, Sharjah, UAE.
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    • Present address: Department of Oral Diagnosis, College of Dentistry, University of Baghdad, Iraq.

  • Natheer H. Al-Rawi B.D.S., M.Sc., Ph.D.,

    1. Department of Oral and Craniofacial Health Science, College of Dentistry, University of Sharjah, PO Box 27272, Sharjah, UAE.
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  • Ahmed S. Al-Naaimi M.B.Ch.B., M.Sc., Ph.D.,

    1. Department of Community, College of Medicine, University of Baghdad, Baghdad, Iraq.
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  • Jalal F. Al-Timimi B.D.S., M.Sc.

    1. Department of Oral Diagnosis, College of Dentistry, University of Baghdad, Baghdad, Iraq.
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Additional information and reprint requests:
Asmaa T. Uthman, B.D.S., M.Sc.
Department of Oral Diagnosis College of Dentistry
University of Baghdad
Iraq
E-mail: asmaatahseen69@yahoo.com

Abstract

Abstract:  Gender determination is an important step in identification in forensic medicine. CT measurements of maxillary sinuses may be useful to support gender identification. This study was undertaken to study the accuracy and reliability of maxillary sinus dimensions measurement in gender classification through the use of reconstructed helical CT images. Eighty-eight patients (43 men and 45 women) with age range from 20 to 49 years were selected in this study. The width, length, and height of the maxillary sinuses in addition to the total distance across both sinuses were measured. Data were subjected to discriminant analysis for gender using multiple regression analysis. Maxillary sinus height was the best discriminant parameter that could be used to study sexual dimorphism with an overall accuracy of 71.6%. Using multivariate analysis, 74.4% of male sinuses and 73.3% of female sinuses were sexed correctly. The overall percentage for sexing maxillary sinuses correctly was 73.9%. It can be concluded that reconstructed CT image can provide valuable measurements for maxillary sinuses and could be used for sexing when other methods of sexing are not conclusive.

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