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
Eponymous archon Eponymous archon In ancient Greece the chief magistrate in various Greek city states was called eponymous archon (ἐπώνυμος ἄρχων, "epōnymos archōn"). "Archon" (ἄρχων, pl. ἄρχοντες, "archontes") means "ruler" or "lord", frequently used as the title of a specific public office, while "eponymous" means that he gave his name to the year in which he held office, much like the Roman dating by consular years. In Classical Athens, a system of nine concurrent archons evolved, led by three respective remits over the civic, military, and religious affairs of the state: the three office holders were known as the eponymous archon, the