Which nerve block is used to anesthetize the palatal tissues anterior to the canines?

• A. Nasopalatine
• B. Greater Palatine
• C. Infraorbital
• D. Mental

Answer: (A)

The main concept is that palatal anesthesia for the front part of the palate is achieved with the nasopalatine nerve block. The nasopalatine nerve travels through the incisive canal to innervate the palatal mucosa and gingiva of the maxillary anterior teeth, from canine to canine. Injecting near the incisive foramen on the palatal midline numbs this region, giving targeted anesthesia of the palatal tissues anterior to the canines. The other blocks cover different areas: the greater palatine block anesthetizes the posterior hard palate, the infraorbital block covers the maxillary anterior teeth and facial gingiva, and the mental block anesthetizes the lower lip and chin.