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 he most admired, his answer was "Ronald Reagan was the greatest western statesman with whom I dealt. He was an intelligent and astute politician who had vision and imagination." Stent's new book, "The Limits of Partnership: US-Russian Relations in the Twenty-First Century", examines the difficulties for the United States in establishing a productive relationship with post-Soviet Russia. Stent argues that four US presidents have pursued their own "resets" with Russia, each of which ended in disappointment. For her research for this book, Stent was able to draw on a decade-worth of meetings that Vladimir Putin has held with Russia experts.