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Gutta-percha is a tree of the genus Palaquium in the family Sapotaceae, which is primarily used to create a high-quality latex of the same name. The material is rigid, naturally biologically inert , resilient, electrically nonconductive , and thermoplastic , most commonly sourced from Palaquium gutta ; it is a polymer of isoprene which forms a ...
The Gutta Percha Company was an English company formed in 1845 to make a variety of products from the recently introduced natural rubber gutta-percha. Unlike other natural rubbers , this material was thermoplastic allowing it to be easily moulded .
Charles Stent (1807–1885) was a 19th-century English dentist notable for his advances in the field of denture making.. In 1847, English dentist Edwin Truman (1819–1905) 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.
The India Rubber, Gutta Percha and Telegraph Works Company was a London-based company based in Silvertown, East London. It was founded by Stephen William Silver in March 1864 as Silver's Indiarubber Works and Telegraph Cable Company Ltd. [ 1 ] However in July that year the name was changed to the India Rubber, Gutta Percha and Telegraph Works ...
This is a list of government-owned companies of Ethiopia. A Government-owned corporation is a legal entity that undertakes commercial activities on behalf of an owner government . There is no standard definition of a government-owned corporation (GOC) or state-owned enterprise (SOE), although the two terms can be used interchangeably.
Location of Ethiopia. Ethiopia is a country located in the Horn of Africa. According to the IMF, Ethiopia was one of the fastest-growing economies in the world, registering over 10% economic growth from 2004 through 2009. [1] It was the fastest-growing non-oil-dependent African economy in the years 2007 and 2008. [2]
The standard filling material is gutta-percha, a natural polymer prepared from latex from the percha tree (Palaquium gutta). The standard endodontic technique involves inserting a gutta-percha cone (a "point") into the cleaned-out root canal along with a sealing cement. [ 25 ]
The Ethiopia Commodity Exchange (ECX) is a commodities exchange established April 2008 in Ethiopia. In Proclamation 2007-550, which created the ECX, its stated objective was "to ensure the development of an efficient modern trading system" that would "protect the rights and benefits of sellers, buyers, intermediaries, and the general public." [1]