Introduction: This study aimed to assess the position of impacted maxillary canine in panoramic radiography via two variables of angulation and magnification. Methods: In this cross-sectional study, each panoramic radiography was numbered on which the patient ‘s name was written as well. Two variables, angulation (The angle of impacted maxillary canine was measured in relation to Occlusal plane) and magnification( the ratio of the widest dimension of mesiodistal canine crown to that of the ipsilateral central incisor crown) were assessed in each panoramic radiography (44 impacted maxillary canines), then they were compared with CBCT. Kappa test was used to assess the agreement of the two variables in panoramic radiography and CBCT. Results: Utilizing angulation variable, 41.6% buccally impacted maxillary canines and 84.3% palatally impacted maxillary canines were determined in their real positions. Moreover, magnification variable also detected 58.3% buccally impacted maxillary canines and 37.5% palatally impacted maxillary canines in their real positions. Degree of agreement between angulation and CBCT was 0.275, and it was reported 0.03 between magnification and CBCT. Conclusion: The study findings revealed that the angulation and magnification methods were not reliable in order to assess the impacted maxillary canines in panoramic radiography, though Angulation proved to be more successful than magnification method.

Keywords: Canine tooth, CBCT, Panoramic radiography

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