With the rapid evolution of computer radiography, digital tracing has slowly replaced the manual tracing methods. 4- 6 The reduction of a three-dimensional (3D) structure to a two-dimensional (2D) image adds to the difficulty. Most errors occur in landmark identification and are influenced by clinician experience, landmark definition, image density and sharpness. The main sources of errors include technical measurements, radiographic acquisition and identifying landmarks. Despite its widespread use in orthodontics, the technique is time-consuming and has the disadvantage of being subject to random and systematic error. 1- 3Ĭonventional cephalometric analysis is performed by tracing radiographic landmarks on acetate overlays and measuring linear and angular values. The use of serial cephalometric radiographs makes it possible to study and predict growth, orthodontic treatment progress and surgical outcome of dentofacial deformity treatment. Cephalometric radiography is an essential tool in the diagnosis and treatment of dental malocclusions and underlying skeletal discrepancies.
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