Exam 37: Anesthesia and Pain Control

The most frequently used form of pain control in dentistry is:

What drug is considered to be a vasoconstrictor and is added to local anesthetic to prolong its effect?

The most common form of topical anesthetic used to control a gag reflex during intraoral radiographs is:

The lengths of the needles used in dentistry are:

The hollow center of the needle through which the anesthetic flows is called the:

Absolute medical contraindications to nitrous oxide use:

The use of an anesthetic solution without a vasoconstrictor is recommended for patients with a history of:

What part of the anesthetic syringe must engage so that aspiration can occur during the injection?

Which of the following choices represents the lowest ratio,meaning greatest concentration,of vasoconstrictor in local anesthetic?