Aspiration and slow delivery are two of the most important safety steps in the delivery of local anesthetic.

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

What is the preferred needle length for the maxillary injections?

It is not necessary to contact bone when using a long needle for the IA nerve block because the length of the needle guarantees it will reach the mandibular foramen.

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

What are the appropriate injections to give for extraction of tooth # 5?

We use pressure anesthesia when giving palatal injections.  What is the name of the theory of pain perception that has the brain perceiving nerve impulses from a current stimuli, and then is able to lessen the impulses from a subsequent stimuli?

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

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

Which statement is false regarding the action of local anesthetic drugs?