Which type of anesthesia is given by injection to numb and provide pain relief in a specific area…

➤ How does injected local anesthesia work to numb part of the mouth?
Injected local anesthetics block sodium channels in nerve fibers, stopping pain signals from reaching the brain. Infiltration numbs tissue near the tooth, while nerve blocks affect larger regions. Onset is usually rapid, within minutes, and the effect is reversible as the drug is metabolized.