What injection is required to work on the lingual aspect of the maxillary incisor?

The nasopalatine block is essential for achieving anesthesia on the lingual aspect of the maxillary incisors. This block targets the nasopalatine nerve, which innervates the mucosa of the anterior palatal area, including the lingual tissues of the maxillary incisors.

When dental procedures involve the lingual side of the maxillary incisors, adequate anesthesia is crucial for patient comfort and procedural success. The nasopalatine nerve emerges from the incisive canal and supplies sensory innervation to the hard palate and adjacent gingival tissues of the maxillary anterior teeth. By performing a nasopalatine block, the practitioner effectively desensitizes these areas, allowing for pain-free treatment of the maxillary incisors.

Other provided options do not accomplish this specific goal. The inferior alveolar block primarily numbs the mandibular teeth and does not affect the maxillary incisors. Buccal infiltration typically targets the buccal soft tissues and proximal gingiva, but does not provide adequate anesthesia for the lingual aspect. A maxillary nerve block, while broader in effect, is not as focused or practical for specifically addressing the lingual tissues of the maxillary incisors as the nasopalatine block is.