The role of maxillary canines in forensic odontology


Background: This study aimed to determine the gender of a sample of Iraqi adults utilizing the mesio-distal width ofmaxillary canines, inter-canine width and standard maxillary canine index, and to determine the percentage ofdimorphism as an aid in forensic odontology.Materials and methods: The sample included 200 sets of study models belong to 200 subjects (100 males and 100females) with an age ranged between 17-23 years. The mesio-distal crown dimension was measured manually, fromthe contact points for the maxillary canines (both sides), in addition to the inter-canine width using digital vernier.Descriptive statistics were obtained for the measurements for both genders; independent samples t-test wasperformed to evaluate the gender difference, percentage of dimorphism was obtained and discriminant functionstatistics were used for gender identification in addition to the percentages of gender identification accuracy.Results: Generally, the mesio-distal width of the maxillary canine and the inter-canine width were larger in males thanfemales with a high significant difference. The accuracy of genders determination using standard maxillary canineindex was 44% for males, 74% for females and 59% for the combined sample, while it was 70% for males, 76% forfemales and 73% for the combined sample using discriminant function statistics depending upon the canines, intercaninewidths and maxillary canine index. The percentages of dimorphism were 6.13% for the canine mesio-distalwidth and 4.66% for the inter-canine width.Conclusions: Maxillary canines can be used in genders identification as an aid for forensic odontology