Charles Stent Charles Stent Charles Stent (1807–1885) was a 19th-century English dentist notable for his advances in the field of denture making. In 1847, Edwin Truman introduced gutta-percha as a material for making dental impressions; however, this was unsatisfactory for several reasons, including its tendency to distort upon removal from the patient's mouth, and to shrink upon cooling. In 1856, Stent added several other materials to the gutta-percha, notably stearine, which markedly improved the plasticity of the material as well as its stability. He also added talc as an inert filler to give more body to the material, and red colouring. The
Angela Stent not have happened, declaring, "We have no crime in the U.S.S.R." "Russia and Germany Reborn: Unification, the Soviet Collapse, and the New Europe" was her second book, published by Princeton University Press in 1999. In it, she analysed and narrated the tumultuous events that led to the end of communism in Eastern Europe, the collapse of the Soviet Union, the emergence of modern Russia, and the reunification of West and East Germany. Mikhail Gorbachev, former Communist Party First Secretary and then President of the Soviet Union, was among the interviews for the book. When Stent asked Gorbachev what world leader