<Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> <P> Dental anesthesia (or dental anaesthesia) is a field of anesthesia that includes not only local anesthetics but sedation and general anesthesia . </P> <P> The most commonly used local anesthetic is lidocaine (also called xylocaine or lignocaine), a modern replacement for procaine (also known as novocaine). Its half - life in the body is about 1.5--2 hours . Other local anesthetic agents in current use include articaine (also called septocaine or ubistesin), bupivacaine (a long - acting anesthetic), Prilocaine (also called Citanest), and mepivacaine (also called Carbocaine or Polocaine). A combination of these may be used depending on the situation . Also, most agents come in two forms: with and without epinephrine (adrenaline) or other vasoconstrictor that allow the agent to last longer and also controls bleeding in the tissue during procedures . Usually the case is classified using the ASA Physical Status Classification System before any anesthesia is given . </P> <P> Local anaesthesia is deposited at the buccal (cheek) side of the maxillary alveolus which can diffuse through the thin cortical plate of the maxilla, then further into the pulp of the tooth in order to achieve dental anaesthesia effect . </P>

What is the local anaesthetic used by dentists
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