Dental anesthesia is administered to numb a specific area of the mouth during dental procedures. The duration of anesthesia's effects can vary depending on the type used and the individual's response to it.
Local anesthesia, the most common type, typically lasts for 2-4 hours. It is injected directly into the tissue surrounding the tooth being treated. General anesthesia, which renders the patient unconscious, can last for several hours, depending on the procedure's complexity.