Which nerve block is used to anesthetize the lower jaw?

Which nerve block is used to anesthetize the lower jaw?

• A. Inferior Alveolar Nerve Block
• B. Posterior Superior Alveolar Nerve Block
• C. Infraorbital Nerve Block
• D. Nasopalatine Block

Answer: (A)

The main idea is that numbing the lower jaw relies on blocking the mandibular division of the trigeminal nerve, specifically the inferior alveolar nerve, before it enters the mandibular foramen. By delivering anesthetic near the lingula/mandibular foramen, you interrupt sensation from all the mandibular teeth on that side, plus the surrounding bone and mucosa that the inferior alveolar nerve and its branches supply (including the area to the lower lip and chin via the mental nerve). This makes the inferior alveolar nerve block the go-to technique for anesthetizing the lower jaw. The other blocks target different regions: a block for the maxillary posterior teeth, a block for the maxillary anterior/midface, and a block for the palate near the incisors, none of which routinely anesthetize the lower jaw.

The main idea is that numbing the lower jaw relies on blocking the mandibular division of the trigeminal nerve, specifically the inferior alveolar nerve, before it enters the mandibular foramen. By delivering anesthetic near the lingula/mandibular foramen, you interrupt sensation from all the mandibular teeth on that side, plus the surrounding bone and mucosa that the inferior alveolar nerve and its branches supply (including the area to the lower lip and chin via the mental nerve). This makes the inferior alveolar nerve block the go-to technique for anesthetizing the lower jaw. The other blocks target different regions: a block for the maxillary posterior teeth, a block for the maxillary anterior/midface, and a block for the palate near the incisors, none of which routinely anesthetize the lower jaw.