Which of the following local anesthetic blocks requires the needle and syringe barrel angulation to be at 45 degrees within three separate planes during administration?

Which photo shows the correct angle for the PSA injection? A. anesthesia 7.jpg B. local anesthesia 8.jpg

Which of the following are the landmarks for the ASA injection?

You administered 2.5 cartridges of 2% lidocaine 1:100,000 to your patient. How many mg of epinephrine did your patient receive?

Local anesthesia of the maxillae is more clinically effective than that of the mandible due to the bone being less dense, and less anatomical variations.

Which injection might the patient feel a “lingual shock” or electric zing in tongue during injection?

The vasoconstrictor is always the limiting drug in a compromised patient.

Which of the following is an advantage of having a local anesthetic agent metabolized in the plasma and liver?

Epinephrine and Levonordefrin are vasoconstrictors used in dental local anesthetics. Epinephrine is more potent than Levonordefrin.

If a child weighs 150 pounds, they are okay to have the same MRD as an adult as their weight is like that of an adult.