CDCA local anesthesia Exam Questions with All Correct Answers

which has thicker cortical plate, maxillary or mandibular? - ANSWER mandibular (this decreased the amount of the local anesthesia molecules that can penetrate to nerves during infiltration injections) due to the thickness of cortical bone, which is a good option for local anesthetic in the mandibular arch during infiltrations? - ANSWER Articaine (Septocaine) is sometimes effective for mand. infiltrations (4% vs. 2% for lidocaine) due to the increased number of molecules hematomas are most common with which type of injection, and why? - ANSWER PSA due to nicking a vessel in the pterygoid plexus of veins what is the TX for a hematoma? - ANSWER pressure, cold compresses on/off, NSAIDS, and time. a positive aspiration when administering a PSA is due to what? - ANSWER aspirating hemorrhage caused by injection what are the three most common locations for hematomas to occur? - ANSWER 1. PSA 2. IA 3. mental blanching of the tissue following/during an injection is caused by what? - ANSWER vasospasm/vasoconstriction caused by epinephrine or brushing against autonomic nerves stimulation vasospasm the pterygomandibular space/triangle is bordered by what anatomical structures? - ANSWER ramus, lateral pterygoid muscle, and medial pterygoid muscle the pterygomandibular space/triangle is identified intra-orally by what? - ANSWER pterygoid hamulus (palpation), coronoid notch (palpation), and pterygomandibular raphe (visual) the mandibular foramen lies approx. __________________________ of the distance from the anterior border of the ramus to the posterior border - ANSWER 1/2 to 2/