In recent years cone beam computed tomography (CBCT) has become a widely accepted radiographic tool for diagnosis, treatment planning and follow-up in dentistry .3D imaging has improved diagnostic efficiency and the practice of dentistry in a variety of ways; from routine evaluation to complex analysis of unusual pathology and congenital deformities, the technology available today makes dentistry better, and easier, and more accurate. The most recognized need for CBCT imaging in orthodontics is that of impacted canine evaluation. In this article a patient having impacted left maxillary canine is evaluated by the 3D CBCT and found beneficial particularly in terms of anatomical detail root resorption and the labiolingual relationships of the impacted tooth with the roots of neighboring teeth, in addition to determining the pathway for biomechanical resolution. Linear and angular measurements on CBCT images are accurate and precise and can be used to assess the exact position of palatal displaced canines.