What areas does the greater palatine injection anesthetize?

What areas does the greater palatine injection anesthetize?

• A. Maxillary anterior soft tissue
• B. Palatal mucosa of the hard palate posterior to the canines
• C. Hard palate anterior to the canines
• D. Soft tissue of the lips

Answer: (A)

The greater palatine injection targets the back part of the hard palate. The greater palatine nerve runs through the greater palatine foramen and supplies sensory innervation to the palatal mucosa and periosteum behind the canine region, extending toward the molars. Therefore, anesthesia from this block covers the palatal mucosa of the hard palate posterior to the canines. It does not affect the anterior hard palate, which is supplied by the nasopalatine nerve, nor does it numb the lips, which are innervated by other branches such as the infraorbital/labial nerves.

The greater palatine injection targets the back part of the hard palate. The greater palatine nerve runs through the greater palatine foramen and supplies sensory innervation to the palatal mucosa and periosteum behind the canine region, extending toward the molars. Therefore, anesthesia from this block covers the palatal mucosa of the hard palate posterior to the canines. It does not affect the anterior hard palate, which is supplied by the nasopalatine nerve, nor does it numb the lips, which are innervated by other branches such as the infraorbital/labial nerves.