Background: Teeth and their measurements give the impression to be the most reliable method since teeth prove the most durable and resilient part of the skeleton. Especially Canines are the most durable teeth in the oral cavity due to the labio-lingual thickness of the crown and the root anchorage in the alveolar process of the jaws. Objective: Establish the sexual dimorphism of permanent maxillary canine teeth in Rajasthan population by Orthopantomographic study Methodology: 300 patients of 150 male and 150 females was included in the study. Use Measurement like mesiodistal width and intercanine distance in maxillary jaws were established based on radiographic examination with the help of digital Orthopantomograph. Results: Canine mesiodistal width was higher in male (left: 7.80 ± 0.04 and right: 7.80 ± 0.04) then female (left: 7.54 ± 0.15 and right: 7.53 ± 0.12) p-value = <0.001. Maxillary intercanine distance was 36.45 ± 0.81 for male & 34.76 ± 1.55 for female. On the other hand, maxillary right and left canine index was higher in female than male P-value <0.001. Conclusion: Maxillary intercanine distance shows maximum sexual dimorphism among all measurements and canine index shows negative sexual dimorphism.