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An Official Publication of the Indian Association of Oral and Maxillofacial Pathologists

FORENSIC CORNER Table of Contents   
Year : 2018  |  Volume : 22  |  Issue : 3  |  Page : 423-429
Sexual dimorphism of enamel area, coronal dentin area, bicervical diameter and dentinoenamel junction scallop area in longitudinal ground section

1 Department of Oral Pathology and Microbiology, Dental College, Jawaharlal Nehru Institute of medical sciences, Porompat, Manipur, India
2 Department of Oral Pathology and Microbiology, Sri Siddhartha Dental College and Hospital, Sri Siddhartha Academy of Higher Education, Tumkuru, Karnataka, India
3 Shine Dental Clinic, Sagolband, Imphal, Manipur, India
4 Department of Oral Pathology and Microbiology, Sri Sankara Dental College, Varkala, Kerala, India
5 Confident Dental Care, Palace Compound, Imphal, Manipur, India
6 Department of Dentistry, Sridevi Institute of Medical Science and Research Hospital, Tumkuru, Karnataka, India

Correspondence Address:
Pillai Arun Gopinathan
Sri Sankara Dental College, Varkala, Akathumuri, Kerala
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jomfp.JOMFP_182_18

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Introduction: Sex determination plays an important role in forensics; several studies done using radiographs, model cast and animal teeth have shown that males possess larger tooth crown and more dentin than that of the females. As physical sectioning of tooth provides more accurate measurement of enamel thickness when compared with other methods, the present study was done to evaluate and compare enamel area (EA), coronal dentin area (CDA), bi-cervical diameter (BCD), average enamel thickness (AET) and dentinoenamel junction scallop area (DEJ-SA) in longitudinal ground sections of first premolars between males and females. Materials and Methods: A total of 60 extracted first premolar teeth were used for the study, of which 30 were from male and 30 were from female. A longitudinal ground section of 15 maxillary and 15 mandibular premolars of approximately 50 μm was prepared buccolingually at the center of each tooth and mounted on the slide. Multiple photomicrographs were captured with the help of Image Analysis System Software-Progres, Speed XT core 3. EA, CDA, length of the dentinoenamel junction and BCD were measured. Average DEJ-SA and AET were also calculated. Results: Mann–Whitney U- test was used for statistical analysis. It was found that EA and AET were significantly greater in females than in males. On the contrary, it was found that CDA was significantly greater in males than in females. However, no significant difference was found in BCD and DEJ-SA between males and females. Conclusion: Permanent first premolar can be reliably used in the field of forensic in establishing gender of individuals by measuring its EA, CDA and AET.

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Journal of Oral and Maxillofacial Pathology | Published by Wolters Kluwer - Medknow
Online since 15th Aug, 2007