Which nerve supplies palatal mucoperiosteum innervation to the maxillary anterior teeth (6–11)?

• A. Nasopalatine nerve
• B. Greater palatine nerve
• C. MSA
• D. PSA

Answer: (A)

The nasopalatine nerve is the one that supplies the palatal mucoperiosteum over the maxillary anterior teeth. It travels through the incisive canal and exits into the hard palate at the incisive foramen, delivering sensory fibers to the palatal mucosa and periosteum in the anterior palate region—that area under the maxillary canines and incisors. The greater palatine nerve covers the posterior part of the hard palate, not the anterior region, while the middle and posterior superior alveolar nerves primarily innervate the buccal aspects of the maxillary teeth and their supporting structures. So for the palatal side over the anterior teeth, the nasopalatine nerve is the correct supplier.