Module 3 Flashcards
_______% of dental emergencies occur during or 5 min after LA administration?
54.9
What is the most common dental emergency due to LA administration?
syncope
LA administration emergencies are caused by ______ not ______?
stress
the drug
What are the 3 critical phases of dental injections?
Penetration Site
Deposition Site
Aspiration
What are the 3 critical errors during dental injections? WREB
outdated anesthetic/anesthetic with epi
Use of a Manual aspirating syringe
Letting needle touch extra/intraoral surface prior to insertion
What are the 3 Primary Injections
Local infiltration
Field Block
Nerve Block
Local infiltration injections are most effective on what arch?
MX
Local Infiltration injections deal with a “________” of anesthetic into a ______ area?
flooding
small
A Field Block Injection deposits anesthetic near a _______?
large terminal nerve branch
Field Blocks are also called?
infiltration/supraperiosteal
A Field Block involves numbing the _____ in and around how many teeth?
tissues
1-2
What is the insertion point for a Field Block?
height of mucobuccal fold
Where do you deposit anesthetic in a Nerve Block Injection?
Main Nerve Trunk
What is an example of a Nerve Block Injection?
PSA
IA
Insertion for a MSA injection is between ______ at the height of the _______ with the bevel towards _____?
MX premolars (apical to 2nd)
mucobuccal fold
bone
What structures are anesthetized by a MSA injection?
1st and 2nd premolar pulp chambers
Mesiobuccal Root of MX 1st molar
Buccal tissue/bone of these structures
Insertion for a PSA injection is at the height of the _______ apical to the ______ ______
mucobuccal fold
MX 2nd molar
What depth does the needle insert on a PSA injection?
16mm
1/2 of long , 3/4 of a short
What structure could cause a positive aspiration when performing a PSA injection?
pterygopalantine plexus
All Maxillary injections require a ______ needle?
short
What structures are anesthetized during a PSA injection?
1st, 2nd, 3rd, molar pulps, buccal periodontum and bone.
What structure is sometimes missed when doing a PSA injection? How often?
Mesiobuccal root of the MX 1st molar
28%
Insertion for a ASA injection is at the height of the ______ apical to ______ teeth?
mucobuccal fold 1st premolar (anywhere from second premolar to the central incisor is ok)
What is the deposition site for an ASA injection?
Infraorbital foramen
What structures are anesthetized during an ASA injection?
Pulps, buccal periodontum and bone of MX centrals through canine
Lower eyelid, upper lip, lateral border of nose
What structure is sometimes affected when administering an ASA injection? How often?
Premolars and MB root of 1st molar
72%
What is the insertion point for a Greater Palatine Nerve Block?
Anterior to the greater palatine foramen
What are 2 landmarks for the Greater Palatine Nerve Block injection?
Greater Palatine Foramen
Junction between MX alveolar process and the palatine bone
What structures are anesthetized by the Greater Palatine Nerve Block?
Posterior portion of the hard palate
and soft tissues UP TO the 1st premolar and over to the midline of the palate
Where is the insertion point for the Nasopalatine Nerve Block?
lateral to the incisive papilla
What is the deposition site for a Nasopalatine Nerve Block?
Incisive Foramen
What structures are anesthetized by the Nasopalatine Nerve Block?
Anterior portion of the hard palate BILATERALLY
from the MESIAL of the 1st premolars to the midline
Palatal INFILTRATIONS affect _____ ______ in the immediate vicinity?
soft tissue
Where is the target/insertion point for palatal infiltration injections?
5-10 mm away from free gingival tissues
How much LA do you give for a supraperiosteal injection
1/3 cartridge (0.6mL)
Avg tissue depth for PSA
16mm
Hemophiliac a should not receive what MX injection
PSA
Avg amount of LA given on PSA
0.9-1.8mL
Avg amount of LA used in MSA?
0.9-1.2mL
Avg depth for a ASA
16mm (1/2 long needle)
Avg amount of LA used in ASA?
0.9-1.2mL
Avg depth for greater palatine
5mm
Avg amount of LA used in Greater Palatine
0.45-0.6mL
1/4-1/3 cart
Avg amount of LA used in Nasopalatine
0.45mL
1/4 cart
Avg amount of LA used in Palatal infiltrations
0.2-0.3mL
Stopper width
Avg amount of LA used in AMSA?
- 4-1.8mL
0. 5mL per min
Avg amount of LA used in Palatal-ASA?
- 4-1.8mL
0. 5mL per min
How far do you penetrate tissue in a Palatal-ASA?
6-10mm into incisive canal
