“…This method of preoperatively performing the planned osteotomy on a dental plaster cast is still known as the 'gold standard' for planning postoperative occlusion. One decade later orthodontists start using anthropometry, clinical photographs, dental and facial plaster casts and early fusion models (1915)(1916)(1917)(1918)(1919)(1920)(1921)(1922)(1923)(1924)(1925)(1926) 1,67,105,107,108 for treatment planning. The development of these early fusion models was almost entirely abandoned in 1931 when Broadbent claims that cephalograms are more accurate for treatment planning, because they display the dentition in relation to the facial skeleton 17 .…”