la anatomy mcqs

Question 1

an extra-oral hematoma can occur from incorrectly given PSA la block because needle penetrated?

Answer 1

pterygoid plexus of veins

Question 2

which block has same injection site as the incisive LA block?

Answer 2

mental block

(between premolars)

Question 3

which block has same injection site as the incisive LA block?

Answer 3

mental block

(between premolars)

Question 4

which nerve is not anaesthetised during an IDB?

Answer 4

buccal nerve

(but lingual, mental and incisive are)

Question 5

which LA uses pressure distraction?

Answer 5

greater palatine block

Question 6

which region is anaesthetised during infraorbital local anaesthetic block?

Answer 6

upper lip, side of nose and lower eyelid

Question 7

if MB root of maxillary 1st molar is not done by PSA block, what extra injection should you do?

Answer 7

middle superior alveolar block

Question 8

landmarks for IDB

Answer 8

coronoid notch and pterygomandibular raphe

Question 9

injection site for greater palatine LA?

Answer 9

maxillary 2nd or 3rd molar

Question 10

xla max lateral incisor?

Answer 10

buccal infiltration and nasopalatine block?

Question 11

facial paralysis can be caused during?

Answer 11

IDB

Question 12

which LA anaesthetises the largest intraoral area?

Answer 12

IDB

Question 13

if needle touches the bone during idb?

Answer 13

needle tip been too far anteriorly on the mandibular ramus

Question 14

which location is most clinically effective during local infiltration?

Answer 14

facial surface of maxillary anterior sextant

Question 15

if working lower and sextant on the roots, which block is the best?

Answer 15

bilateral lingual block

Question 16

buccal gingival and periodontium mand molars?

Answer 16

buccal block

Question 17

mental foramen is usually located on the lateral surface of the mandible inferior to the apices of which of the following mandibular teeth

Answer 17

1st and 2nd molars

Question 18

to have full maxillary quadrant LA, what needs to be administered with anterior and middle SA?

Answer 18

posterior SA block

Question 19

what can serve as a landmark for middle superior alveolar LA block?

Answer 19

premolars, distally to the apex

Question 20

what is considered true mandibular block because it anaesthetises the entire mandibular nerve?

Answer 20

gow-gates block

Question 21

which la block is associated with self-inflicted trauma?

Answer 21

inferior alveolar block

Question 22

which block has a high risk of positive aspiration?

Answer 22

mental block

Question 23

which block usually anaesthetises the mylohyoid nerve?

Answer 23

vazirani-akinosi block

Question 24

in contrast to other mandibular quadrant blocks, the vazirani-akinosi mandibular block is a ?

Answer 24

closed-mouth block

Question 25

the target area for the gow-gates LA block os the

Answer 25

neck of mandibular condyle