What injection is needed to anesthetize the linguals of maxillary anterior teeth?

• A. Nasopalatine
• B. Greater Palatine
• C. Inferior Alveolar
• D. Anterior Superior Alveolar

Answer: (A)

Target the nasopalatine nerve. This nerve runs through the incisive canal and supplies sensation to the anterior part of the hard palate and the palatal/lingual gingiva of the maxillary incisors and canines. By injecting at the incisive foramen on the hard palate, you block these branches bilaterally, giving anesthesia to the lingual/palatal surfaces of the maxillary anterior teeth. The other blocks address different regions: greater palatine covers the posterior palate, inferior alveolar is for the mandible, and anterior superior alveolar affects the buccal/labial aspect and pulps of the maxillary anterior teeth but not their palatal/lingual tissues.