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113- anesthesia
SCC- Wallace
77
Dentistry
Professional
04/24/2016

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Cards

Term
is local anesthesia more successful for the maxilla or mandible?
Definition
maxilla
Term
the maxillary bone is less dense in what area?
Definition
facial surface
Term
does the maxilla or mandible have more variation in anatomy?
Definition
mandible has more variation
Term
what is the target area for the PSA block
Definition
PSA nerve as it enters the posterior superior alveolar farmina above maxillary tuberosity
Term
what is the injection site for the PSA block
Definition
height of MB fold
apex of max 2nd molar (D to zygomatic process)
Term
the needle for the PSA injection is inserted in what direction?
Definition
distal and medial direction 45:45
Term
for the PSA injection, the syringe should extend from the mouth adjacent to what structure?
Definition
ipsilateral labial commissure
Term
what injection would be used for the maxillary premolars and MB root of the 1st molar?
Definition
MSA
Term
which blocks do not anesthetize the buccal mucosa adjacent to their target teeth?
Definition
PSA
IA (for molars)
Term
what is the target area for the MSA block
Definition
apex of maxillary second premolar
Term
is bone contacted for the MSA block
Definition
no
Term
what two blocks are used instead of an IO?
Definition
ASA and MSA
Term
what is the target area for the ASA block
Definition
ASA nerve at the apex of maxillary canine (anterior to the canine eminence in the canine fossa)
Term
is the canine fossa anterior or posterior to the canine eminence?
Definition
anterior to the eminence
Term
what is the injection angle for the ASA block?
Definition
10 degrees off from the long axis of the canine
Term
is the bone contacted for an ASA block?
Definition
no
Term
what nerves are anesthetized for the IO block?
Definition
MSA and ASA
Term
when is the IO indicated?
Definition
procedure involves more than 2 max premolars or anterior teeth and overlying periodontium
Term
what is the target area for the IO block
Definition
ASA and MSA nerves as they join the infraorbital nerve after it enters the infraorbital foramen
Term
where is the infraorbital foramen located?
Definition
10 mm below the infraorbital rim
1-4 mm medial to the pupil
Term
where is the injection site for the IO block?
Definition
height of MB fold at apex of max first premolar
Term
for an IO injection, where should the needle contact bone?
Definition
upper rim of infraorbital foramen
Term
why is the finger held on the infraorbital foramen during needle insertion of the IO block?
Definition
helps keep the syringe angled toward the foramen and parallel with the long axis of the tooth
Term
when is the greater palatine injection used?
Definition
more than 2 posterior maxillary teeth
palatal soft tissues distal to max canine
Term
what area is anesthetized for the GP block?
Definition
posterior hard palate up to max first molar and medially to midline
Term
where is the greater palatine foramen in adults and children
Definition
children- apex of max 2nd molar
adults- apex of maxillary 3rd molar
Term
the greater palatine foramen is located at the junction of which two structures?
Definition
maxillary alveolar process
posterior hard palate
Term
how many mm's medially from the lingual margin is the greater palatine foramen?
Definition
10mm
Term
what angle is the needle inserted for the GP block?
Definition
90 degress to the palate
Term
what bone is contacted for the GP block?
Definition
palatine bone
Term
what area is anesthetized for the nasopalatine block
Definition
anterior portion of the hard palate (canine to canine)
Term
what is the target for the NP block
Definition
L & R nasopalatine nerves as they enter the incisive foramen
Term
which 3 injections use pressure anesthesia?
Definition
Nasopalatine
greater palatine
anterior middle superior alveolar (AMSA)
Term
for the nasopalatine block, do you inject directly into the incisive papilla?
Definition
no, lateral side (opposite pressure anesthesia)
Term
what is the needle insertion angle for the NP block?
Definition
45 degrees to palate
Term
is bone contacted in the NP block?
Definition
yes, maxillary bone
Term
the Anterior Middle Superior Alveolar (AMSA)block covers the same area as what 4 blocks?
Definition
ASA
MSA
GP
NP
Term
why is the AMSA block preferred by some dentists?
Definition
doesn't anesthetize facial tissues, allows for smiling to check height of teeth
Term
what is the injection site for the AMSA block?
Definition
bisecting the apex of max premolars
midway between lingual gingiva and median palatal suture
Term
what should the syringe orientation be for the AMSA block
Definition
from contralateral premolars
Term
what is the angle of needle penetration for the AMSA
Definition
45 degree
Term
is bone contacted for the AMSA injection?
Definition
yes, maxillary bone
Term
Where is the mandibular bone thickest?
Definition
around posterior teeth
Term
what block is used for pulpal anesthesia of the mandibular teeth
Definition
inferior alveolar (mandibular block)
Term
what tissues are anesthetized for the IA block?
Definition
all lingual
buccal for anterior and premolars
Term
what structure overhands the mandibular foramen?
Definition
lingula
Term
what is the target area for the IA block?
Definition
superior to the mandibular foramen
Term
which two nerves are anesthetized during the IA block?
Definition
inferior alveolar
lingual
Term
what is the injection site for the IA block
Definition
mandibular tissues on medial border of mandibular ramus
Term
what is the correct injection height for the IA block?
Definition
coronoid notch
Term
what is the correct direction for the IA block?
Definition
anteroposterior direction
Term
what space is the needle inserted into for the IA block?
Definition
pterygomandibular space
Term
overinsertion of the needle on an IA block may resulting in piercing of what structure?
Definition
parotid salivary gland
Term
if bone is contacted too soon in an IA block, what structure would block to the flow of anesthetic to the target area?
Definition
sphenomandibular ligament
Term
what block would be used for anesthesia of the buccal periodontium of the mandibular molars??
Definition
buccal block
Term
what is the target area for the buccal block
Definition
buccal nerve as it passes over the anterior border of the ramus
Term
what is the injection site for the buccal block
Definition
buccal tissue distal and buccal to the last mandibular molar (anterior border of ramus)
Term
is bone contacted for the buccal block?
Definition
yes, mandible
Term
what is the mental blocked used for?
Definition
facial periodontium of mandibular premolars and anterior teeth
Term
what is the target area for the mental block
Definition
mental foramen
Term
what is the injection site for the mental block
Definition
height of MB fold between 1st and 2nd premolars apical to mental foramen depression
Term
is bone contacted for the mental block?
Definition
no
Term
what does the incisive block anesthetize?
Definition
pulpal and facial tissues of mandibular teeth anterior to mental foramen (anteriors and possible 1st premolar)
Term
the target area for the incisive block is the same as what other block
Definition
mental
Term
what is the different between the method of injection for the mental and incisive block
Definition
more anesthetic for the incisive
pressure applied after incisive to move anesthetic forward and into the mental foramen
Term
what nerves are anesthetized in the gow-gates block? (7)
Definition
inferior alveolar
mental
incisive
lingual
mylohyoid
auriculotemporal
buccal
Term
what is the target area for he Gow Gates
Definition
anteromedial border of mandibular condylar neck inferior to insertion of lateral pterygoid muscle
Term
what is the injection site for the gow gates
Definition
mesial of the mandibular ramus
distal to the height of the mesiolingual cusp of the max 2nd molar
Term
what imaginary line should you trace for the gow gates
Definition
ipsilateral intertragic notch to the ipsilateral labial commissure
Term
for the gow gates, the syringe barrel should be over which contralateral teeth?
Definition
mandibular canine-premolar area
Term
is bone contacted for the gow gates?
Definition
yes
Term
An extraoral hematoma can result from an incorrect PSA block because overinsertion results in penetration of what structure?
Definition
pterygoid plexus of veins
Term
which ofthe following is not anesthetized during the IA block
buccal
lingual
mental
incisive
Definition
buccal
Term
what facial structures are usually anesthetized during an infraorbital block
Definition
upper lip
side of nose
lower eyelid
Term
what landmark should be located before administering an IA block
Definition
coronoid notch
Term
what happens if the bone is contacted early during an inferior alveolar local anesthetic block
Definition
needle tip located too far anteriorly on the ramus
Term
in which location is the use of local infiltrations most successful?
Definition
facial surface of anterior maxilla
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