Journal of Forensic Dental Sciences
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ORIGINAL ARTICLE
Year : 2014  |  Volume : 6  |  Issue : 1  |  Page : 25-30

Assessment of frontal sinus dimensions to determine sexual dimorphism among Indian adults


1 Department of Oral Pathology and Microbiology, KLE VK Institute of Dental Sciences and Hospital, Belgaum, Karnataka, India
2 Department of Oral Pathology and Microbiology, Maratha Mandal NG Halgekar Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India

Correspondence Address:
Vijayalakshmi S Kotrashetti
Department of Oral Pathology and Microbiology, Maratha Mandal NG Halgekar Institute of Dental Sciences and Research Centre, Belgaum 590 010, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0975-1475.127766

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Background: Sex identification of unknown individuals is important in forensic sciences. At times when only skull remains are found and other means of identification fails, radiographs of frontal sinus can be used for identification. Frontal sinus morphology is unique to individual and can be used effectively in person identification; whereas its use in determining sexual dimorphism is limited. Aim: To determine sexual dimorphism among Indians by evaluating frontal sinus pattern using postero-anterior radiograph. Materials and Methods: The right and left areas, maximum height and width of frontal sinus were determined in 300 digital postero-anterior view radiographs obtained from 150 males and 150 females aged between 18-30 years. The measurements were carried out by transferring the image to Adobe® Photoshop® CS3 extended. Comparison of values were done using student's t-test and accuracy of sex determination was assessed through Logistic regression analysis. Results and Conclusions: One hundred and forty seven males and 142 females show presence of frontal sinus with seven individuals showing unilateral/bilateral absence of frontal sinuses. The mean values of the frontal sinus height, width and area are greater in males. Right frontal sinus is larger than the left sinus in both the sex. The mathematical model based on logistic regression analysis gives an average concordance index for sex determination of 64.6%. Thus, frontal sinus provides average accuracy in sex determination among Indian population. This may be due to its greater variation in morphology.


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