In dentistry, local anesthetics are used to numb a specific area of the mouth, allowing for pain-free procedures. The most commonly used local anesthetic is lidocaine, which is injected into the tissue surrounding the nerve that supplies sensation to the area being treated.
Local anesthetics work by blocking the transmission of pain signals from the nerves to the brain. This allows the dentist to perform procedures such as fillings, root canals, and extractions without causing the patient any discomfort. Local anesthetics are also used to numb the gums before injections, making the experience more comfortable for the patient.