Which is the best explanation for incomplete anesthesia of the central incisor following an ASA nerve block?
A) Cross-innervation from the opposite side of injection
B) Inadequate depth of penetration
C) Poor angulation of the needle
D) Accessory innervation of the MSA nerve

Question

Quizplus · Accepted Answer

Cross-innervation from the opposite side of injection can lead to incomplete anesthesia of the central incisor because the nerve supply may come from the opposite side, making it difficult to achieve complete anesthesia with a unilateral ASA nerve block.

Which Is the Best Explanation for Incomplete Anesthesia of the Central