A

The anterior (pre-maxillary) portion of the hard palate receives sensory fibers from the nasopalatine nerve, which descends through the incisive canal to innervate the mucosa just behind the maxillary incisors; the greater palatine nerve supplies the more posterior hard palate. Clinical and anatomic studies confirm this distribution [Langford, 1989, PMID 2804040; Li et al., 2021, PMID 33834671].