Stent out. Others attribute the noun "stent" to Jan F. Esser, a Dutch plastic surgeon who in 1916 used the word to describe a dental impression compound invented in 1856 by the English dentist Charles Stent (1807–1885), whom Esser employed to craft a form for facial reconstruction. The full account is described in the "Journal of the History of Dentistry". According to the author, from the use of Stent's compound as a support for facial tissues evolved the use of a stent to hold open various bodily structures. The first (self-expanding) "stents" used in medical practice in 1986 by Ulrich Sigwart
Bare-metal stent growth of tissue into the stent resulting in vessel narrowing. Bare-metal stent Bare-metal stent is a stent without a coating or covering (as used in covered stents drug-eluting stents). It is a mesh-like tube of thin wire. The first stents licensed for use in cardiac arteries were bare metal – often 316L stainless steel. More recent ('2nd generation') stents use cobalt chromium alloy. The first stents used in gastrointestinal conditions of the esophagus, gastroduodenum, biliary ducts, and colon were plastic; bare metal stents were first brought into the clinic in the 1990s. Drug-eluting stents are often preferred over bare-metal stents