Today, many people are given the option of being sedated or having local anesthesia preformed when undergoing dental treatment. Most people dislike dental visits, and some practices now offer sedation with routine prophylactic cleanings. Other dentists do not believe that sedation should be used unless it is the only option available and the procedure is completely necessary. Local anesthesia is “an anesthetic drug (which may be given as an injection, spray, or ointment) that numbs only a small, specific area of ​​the body (for example, a foot, hand, or area of ​​skin)” (Jones ). A person may be awake or sedated when local anesthesia is administered. This depends on the extent of what is needed during the surgery. Local anesthesia has been used for over 120 years in the United States and “approximately 300 million anesthetic cartridges are used each year” (Mayo Clinic Staff, 2013). In 1884, William Halsted used a local injection of cocaine which was the first peripheral nerve block injection in medicine. Although cocaine is no longer used, some of Halsted's methods are still taught in dental schools around the world. Procaine was later used in 1904 by Alfred Einhorn and was the most successful local anesthetic. Today the brand name of the drug is Novocaine. The most common local anesthetic today is lidocaine, developed by Nils Lofgren in 1948. Today, all local anesthetics currently used are synthetic. Local anesthetics are classified into two different categories based on the connection. These two categories are the amide linkage and the ester linkage. Almost all injectable anesthetics are starches. "On December 11, 1844, Horace Wells underwent the extraction of one of his wisdom teeth by a colleague while under the influence of nitrous oxide" (Cantlay, Willi...... middle of paper ......If the child cries or does not stay still in the chair, the first thought of dentists is to put them to sleep. This means that their dental experience is negative only at an early age they need to work with them at a young age and to show that the dentist's office is not a terrible place. They need to enjoy their experiences while they are young, so they will not be worried and will be more likely to go there regularly when they are older. during a dental visit. Local anesthesia appears to be the safest and easiest route when performing dental procedures that require some sort of anesthetic agent, conscious sedation will be the safest and fastest recovery procedure . The only time general anesthesia should be used is when it is absolutely necessary and there are no contraindications.