When did anesthesia begin to be used when extracting a tooth?

In the 17th to 18th century when anesthesia was not available, barber surgeons and their assistants would hold down patients when pulling out a tooth. In 1846, American dentist H. Wells used nitrous oxide anesthesia for pain-free dental extraction. It was inspired by the fact that while a laughing gas party was being held, one intoxicated participant fell but he did not complain about pain. In the Paramount movie “The Paleface,” Bob Hope played as a dentist and there was a scene in which he administered nitrous oxide anesthesia. In 1844, American dentist W. T. G. Morton applied ether anesthesia when extracting a tooth. Local anesthetics, procaine hydrochloride and lidocaine hydrochloride, currently in use were invented in 1905 and 1943, respectively.