Which of the following best explains the needle choice for an infiltration of a maxillary lateral incisor?
A) 30 gauge long for patient comfort and to assure deposition of solution near the apex
B) 30 gauge short for patient comfort and high risk of positive aspiration
C) 27 gauge short based on the low risk of positive aspiration
D) 25 gauge extra short due to shallow root depth

Question

Quizplus · Accepted Answer

The 27 gauge short needle is often chosen for infiltrations in the maxillary area due to its balance between patient comfort and the low risk of positive aspiration. The maxillary bone is less dense than the mandibular bone, allowing for easier penetration of the anesthetic solution without the need for a long needle. The 27 gauge size is also preferred because it is sturdy enough to penetrate soft tissue without bending, while still being thin enough to minimize patient discomfort. Positive aspiration (drawing blood into the cartridge upon aspiration) is less likely in the maxillary area compared to the mandibular area, making the use of a short needle appropriate.

Which of the Following Best Explains the Needle Choice for an Infiltration