Sex estimation is one of the essential parameters for the human Identication in forensic analysis. Resilience of palatal structures and mandible to traumatic and natural forces is useful in several forensic situations. Radiography plays a vital role in forensic dentistry to uncover hidden facts which cannot be seen by means of physical examination. The occlusal radiograph gives a bird's eye view of entire maxillary and mandibular arches, and useful in evaluation of dental arches. To assess the usefulness of linear measurements of maxillary and mandi Aims: bular dental arches on occlusal radiographs for gender determination. The study constituted of 60 subjects Settings And Design: (30 males and 30 females) with age range of 21-30 years. 120 cross sectional maxillary and mandibular occlusal radiographs were taken and traced. Maxillary and mandibular dental arch linear measurements on occlusal radiographs were made related to Inter canine, Inter 1st premolar, Inter 2nd premolar, Inter 1st molar, and Inter 2nd molar widths. Statistical Analysis Used: Independent Student t Test and Discriminant function analysis. The Inter 2nd molar width Results: in both dental arches was the best predictor for gender determination. The Predicted gender model showed a sensitivity of 60% & 70% and specicity of 70% & 60% in the maxillary and mandibular arches respectively with overall accuracy of 65% in both the arches. Conclusion: The present study shows a signicant sexual dimorphism in linear measurements of maxillary and mandibular dental arches and can be very useful for gender determination in forensic science
Background and Objectives: Paranasal sinus anatomy is complex and rather variable from person to person. Gender determination is an important step in human identication in forensic medicine. Radiographs are used in forensic medicine for the identication of humans especially in cases where the body is decomposed, fragmented, or burned. The maxillary sinus is the largest of the four paranasal sinuses and its measurements are valuable in studying sexual dimorphism. Maxillary sinuses remain intact, although the skull and other bones may be badly disgured in victims who are incinerated. Therefore, this study was undertaken to examine and measure dimensions of maxillary sinus as observed on maxillary sinus radiographs and propose the use of the same, as an aid in gender determination. Materials and Methods: Maxillary sinus views of 50 healthy patients (25 males and 25 females) were taken using Kodak 8000 C Digital and Panoramic and Cephalometric system (73 Kvp. 12mA, 10.7s) and measurements made using Master View 3.0 software. Results: The total studied sample composed of 50 patients; the results were based on two study groups: the male group (composed of 25 patients) and female group (composed of 25patients). In the current study, the size of the maxillary sinuses of the female was found to be smaller than those of men. The width of right maxillary sinus, the height of right maxillary sinus and left maxillary sinus and the total width across right and left maxillary sinus showed statistically signicant differences at a p value of .007, .020, .008 and .005 respectively. The present study showed that the accuracy rate for identication of males was 76% and for females was 60%. From the observations of our study, we found signicant differences in dimensionsConclusion: of maxillary sinuses between males and females. We therefore conclude that maxillary sinus dimensions are useful and can be used as an aid in gender determination.
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