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If the patient has a frenum at the optimal penetration point, it is important to penetrate the needle into that frenum in order to get appropriate anesthesia.

Which of the following are reasons to use a 25 gauge long needle for an IA nerve block?  (Choose all that apply)

It is not necessary to get informed consent prior to giving anesthetic because patients know this is part of dental treatment.

What is the correct depth of needle penetration for the MSA injection:

  After contacting bone at the correct depth for the IA injection, what step do you need to take before you aspirate?

In order for the topical to anesthetize terminal nerve endings to a depth of 2-3mm it is imperative that a large amount is applied to the tissue.

Which of the following terms that happens to the nerve impulse would be similar to crimping a hose?

Saltatory conduction is defined as the:

The deposition site is defined as the area of tissue penetration when administering an injection.

The choice of which length and gauge of needle to use should depend on what will be most comfortable for the patient.