CDCA Local Anesthesia Exam Questions
and Answers | Latest Update 2026/2027 |
Graded A+ | Guaranteed Pass.
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)
Antero-posteriorly, the greater palatine foramen is located between the
___________________________. - ANSWER✔✔-middle oft he
maxillary second molar and the middle of the third molar in about 80-
90% of patients.
all arteries leading to the oral cavity receive blood from what? -
ANSWER✔✔-external carotid (most are direct or indirect branches from
the maxillary artery with the exception of the lingula -- this is a direct
branch from the external carotid)
veins from the oral cavity will drain into what? - ANSWER✔✔-internal
jugular (both internal and external drain into the brachiocephalic veins
which drain to the superior vena cava
and Answers | Latest Update 2026/2027 |
Graded A+ | Guaranteed Pass.
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)
Antero-posteriorly, the greater palatine foramen is located between the
___________________________. - ANSWER✔✔-middle oft he
maxillary second molar and the middle of the third molar in about 80-
90% of patients.
all arteries leading to the oral cavity receive blood from what? -
ANSWER✔✔-external carotid (most are direct or indirect branches from
the maxillary artery with the exception of the lingula -- this is a direct
branch from the external carotid)
veins from the oral cavity will drain into what? - ANSWER✔✔-internal
jugular (both internal and external drain into the brachiocephalic veins
which drain to the superior vena cava
