Question

For the administration of an inferior alveolar nerve block, how much of the long needle should penetrate the tissues?

a. 1/2
b. 1/4
c. 2/3
d. Full length

Answer 1

For an inferior alveolar nerve block, about 2/3 of the long needle is generally used to properly reach the nerve, ensuring effective and safe anesthesia.

Step-by-step explanation:

When performing an inferior alveolar nerve block, generally about 2/3 of a long needle should penetrate the tissues. This is to ensure the needle reaches the inferior alveolar nerve, which is located within the pterygomandibular space near the mandibular foramen.

The exact depth depends on the individual's anatomy and the dentist's technique, but using 2/3 of the needle's length is a common practice. It is crucial to aspirate before injecting the anesthetic to avoid intravascular injection. The procedure requires a good understanding of the anatomical landmarks of the mandible to deliver the anesthetic effectively and safely.