What is the target area for a nasopalatine nerve block?

• A. Incisive foramen
• B. Greater palatine foramen
• C. Sphenopalatine foramen
• D. Pterygopalatine fossa

Answer: (A)

The nasopalatine nerve block targets the incisive foramen. The nasopalatine nerve, a branch of V2, travels through the incisive canal and exits at the incisive foramen to supply the palatal mucosa of the anterior maxilla (from canine to canine). By depositing anesthesia right at or near this foramen, you block the nerve fibers as they emerge to innervate the front part of the hard palate.

Other sites relate to different nerves or deeper spaces. The greater palatine foramen houses the greater palatine nerve for the posterior palate, so blocking there would affect the back part of the palate rather than the anterior region. The sphenopalatine foramen is a route for nasal branches, not the exit point for the nasopalatine nerve to the palate. The pterygopalatine fossa is a deeper space containing branches of V2 and the pterygopalatine ganglion, not the direct exit point for the nasopalatine nerve supplying the anterior palate.