Question

The clinician is drawing two imaginary lines: one that starts from the middle of the first and second premolar to the medial palatine raphe; and another one that is parallel to the mid palatine raphe halfway between the gingival margin and the midline of the palate.

Which injection is the clinican performing?

a. Anterior Middle Superior Alveolar Nerve block
b. Greater palatine nerve block
c. Nasopalatine nerve block
d. Posterior superior alveolar nerve block

Answer 1

The clinician is performing a nasopalatine nerve block, which involves anesthetizing the nasopalatine nerve near the medial palatine raphe and the incisive papilla for dental procedures.

Step-by-step explanation:

The clinician is performing a nasopalatine nerve block. This local anesthetic technique targets the nasopalatine nerve as it passes through the incisive canal, beneath the incisive papilla, behind the maxillary central incisors. The imaginary lines described would correspond to the landmarks used to identify the correct injection site for anesthetizing this nerve. It is important when performing this block to deposit the anesthetic near the palatine raphe and not laterally where the greater palatine nerve emerges from the greater palatine foramen.