LOCAL ANESTHESIA CDCA EXAM
COMPREHENSIVE EXAM SCRIPT 2026 SOLVED
QUESTIONS FULL SOLUTION
◉ what is the target area for the mental nerve block Answer: the
mental foramen between the mandibular premolars
◉ what is the landmark for the mental nerve block Answer:
mucobuccal fold of the mandibular premolars
◉ what is the type of needle used for a mental nerve block Answer:
25-27 gauge short
◉ what is the injection depth of the mental nerve block Answer: 5-6
mm
◉ what is the technique for administering the mental nerve block
(6) Answer: ask the pt to partially close the jaw
retract lip
insert needle at mucobuccal fold by the first premolar or canine
aspirate
deposit anesthetic
,◉ how much anesthetic should be used for a mental nerve block
Answer: 0.6 ml
◉ what area is anesthetized when the incisive nerve block is
administered Answer: pulps of the incisors, canines, and premolars
buccal mucosa from mental foramen to midline
lower lip and skin of chin
note: does NOT anesthetize lingual tissues
◉ what is the target area for an incisive nerve block Answer:
mucobuccal fold of the mandibular premolars
◉ what is the injection depth of the incisive nerve block Answer: 5-6
mm
◉ what is the technique when administering the incisive nerve block
Answer: Ask pt to slightly close
retract lip
insert needle at first premolar, directing needle to mental foramen
(or between the two premolars at long axis of the teeth)
aspirate
deposit
,◉ How much anesthetic should be given for an incisive nerve block
Answer: 0.6 ml
◉ what nerve is numbed after a buccal nerve block is performed
Answer: long buccal nerve
◉ what area is anesthetized with a buccal block Answer: buccal soft
tissue and buccal periosteum of mandibular molars
◉ what is the target area with a buccal block Answer: where the
buccal nerve crosses in front of the anterior border of the ramus
◉ what is the landmark for the buccal block Answer: last molar,
parallel to the occlusal plane
◉ is a short or long needle used for buccal blocks Answer: long
◉ what is the insertion depth for the buccal block Answer: 1-4 mm
◉ what is the technique for administering a buccal block Answer:
retract the cheek
insert needle distally and buccally placed to the last molar, parallel
to the molars
, aspirate
deposite
◉ how much anesthetic is given for a buccal nerve block Answer: 0.3
ml
◉ what nerves are anesthetized with the IA block (4) Answer: IA,
incisive, mental, and lingual
◉ what areas are anesthetized with the IA block (4) Answer: all
mandibular teeth
buccal mucosa anterior to 1st molar
anterior 2/3 of tongue
lingual soft tissues and periosteum
◉ what is the target are for the IA block Answer: slightly above
mandibular foramen
◉ what are the landmarks for the IA block (4) Answer: coronoid
notch
occlusal plane
pterygomandibular raphe (vertical curve)
pterygomandibular depression (area insertion)
COMPREHENSIVE EXAM SCRIPT 2026 SOLVED
QUESTIONS FULL SOLUTION
◉ what is the target area for the mental nerve block Answer: the
mental foramen between the mandibular premolars
◉ what is the landmark for the mental nerve block Answer:
mucobuccal fold of the mandibular premolars
◉ what is the type of needle used for a mental nerve block Answer:
25-27 gauge short
◉ what is the injection depth of the mental nerve block Answer: 5-6
mm
◉ what is the technique for administering the mental nerve block
(6) Answer: ask the pt to partially close the jaw
retract lip
insert needle at mucobuccal fold by the first premolar or canine
aspirate
deposit anesthetic
,◉ how much anesthetic should be used for a mental nerve block
Answer: 0.6 ml
◉ what area is anesthetized when the incisive nerve block is
administered Answer: pulps of the incisors, canines, and premolars
buccal mucosa from mental foramen to midline
lower lip and skin of chin
note: does NOT anesthetize lingual tissues
◉ what is the target area for an incisive nerve block Answer:
mucobuccal fold of the mandibular premolars
◉ what is the injection depth of the incisive nerve block Answer: 5-6
mm
◉ what is the technique when administering the incisive nerve block
Answer: Ask pt to slightly close
retract lip
insert needle at first premolar, directing needle to mental foramen
(or between the two premolars at long axis of the teeth)
aspirate
deposit
,◉ How much anesthetic should be given for an incisive nerve block
Answer: 0.6 ml
◉ what nerve is numbed after a buccal nerve block is performed
Answer: long buccal nerve
◉ what area is anesthetized with a buccal block Answer: buccal soft
tissue and buccal periosteum of mandibular molars
◉ what is the target area with a buccal block Answer: where the
buccal nerve crosses in front of the anterior border of the ramus
◉ what is the landmark for the buccal block Answer: last molar,
parallel to the occlusal plane
◉ is a short or long needle used for buccal blocks Answer: long
◉ what is the insertion depth for the buccal block Answer: 1-4 mm
◉ what is the technique for administering a buccal block Answer:
retract the cheek
insert needle distally and buccally placed to the last molar, parallel
to the molars
, aspirate
deposite
◉ how much anesthetic is given for a buccal nerve block Answer: 0.3
ml
◉ what nerves are anesthetized with the IA block (4) Answer: IA,
incisive, mental, and lingual
◉ what areas are anesthetized with the IA block (4) Answer: all
mandibular teeth
buccal mucosa anterior to 1st molar
anterior 2/3 of tongue
lingual soft tissues and periosteum
◉ what is the target are for the IA block Answer: slightly above
mandibular foramen
◉ what are the landmarks for the IA block (4) Answer: coronoid
notch
occlusal plane
pterygomandibular raphe (vertical curve)
pterygomandibular depression (area insertion)
