Broadbent published papers in 1937 describing craniofacial measurements in children, establishing him as the father of radiographic cephalometry. Cephalometry helps with diagnosis, classification of skeletal and dental abnormalities, treatment planning, evaluating treatment results, and predicting growth. Conventional cephalometry has disadvantages like external error and lack of defined outlines. Photocephalometry introduced in 1970s allows measurement of soft tissues. Digital cephalometry provides advantages like dose reduction and 3D reconstruction. 3D modeling and stereolithography are now used for surgical planning and simulation.