Journal of Forensic Dental Sciences
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Year : 2016  |  Volume : 8  |  Issue : 3  |  Page : 145-149

Odontometric analysis of permanent maxillary first molar in gender determination

1 Department of Oral and Maxillofacial Sciences, Al-Farabi College, Jeddah, Saudi Arabia
2 Department of Oral Medicine and Radiology, Al-Badar Rural Dental College And Hospital, Gulbarga, Karnataka, India

Correspondence Address:
Dr. Ayesha Shireen
C/O Al-Farabi College, P.O.Box. 21512 Jeddah 45107
Saudi Arabia
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0975-1475.195120

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Aims: This study was conducted to assess the sex determination potential from mesiodistal (MD) and buccolingual (BL) dimensions of permanent maxillary first molar. Subjects and Methods: The study was conducted in the Department of Oral Medicine and Radiology, Al-Badar Rural Dental College and Hospital, Gulbarga, Karnataka, on 600 subjects (300 male and 300 female), aged 17–25 years. The subjects were selected based on the inclusion and exclusion criteria set forth for the study. After obtaining informed consent, the intraoral measurements of MD and BL dimensions on casts of the first maxillary molars were taken using digital vernier caliper with resolution of 0.01 mm. Statistical Analysis Used: The data obtained were subjected to statistical analysis using paired and unpaired t-test to compare MD and BL dimensions between males and females. P ≤0.05 was considered statistically significant. Results: The mean MD width of the first maxillary molar was 10.60 ± 0.6644 mm (right) and 10.60 ± 0.6644 mm (left) in males and 10.40 ± 0.6255 mm (right) and 10.40 ± 0.6255 mm (left) in females. The mean BL width of the first maxillary molar was 11.60 ± 1.2227 mm (right) and 11.60 ± 1.2227 mm (left) in males and 11.20 ± 0.8440 mm (right) and 11.20 ± 0.8440 mm (left) in females. The differences between males and females in MD and BL dimensions measured were statistically significant (P < 0.05). Right and left MD dimensions exhibited sexual dimorphism of 1.92% and right and left BL dimensions exhibited sexual dimorphism of 3.57%. Conclusions: The MD and BL dimensions of the maxillary first molars may be used as an aid in sex discrimination.

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