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Local Anesthesia > Module 3 > Flashcards

Module 3 Flashcards

1
Q

_______% of dental emergencies occur during or 5 min after LA administration?

A

54.9

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2
Q

What is the most common dental emergency due to LA administration?

A

syncope

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3
Q

LA administration emergencies are caused by ______ not ______?

A

stress

the drug

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4
Q

What are the 3 critical phases of dental injections?

A

Penetration Site
Deposition Site
Aspiration

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5
Q

What are the 3 critical errors during dental injections? WREB

A

outdated anesthetic/anesthetic with epi
Use of a Manual aspirating syringe
Letting needle touch extra/intraoral surface prior to insertion

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6
Q

What are the 3 Primary Injections

A

Local infiltration
Field Block
Nerve Block

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7
Q

Local infiltration injections are most effective on what arch?

A

MX

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8
Q

Local Infiltration injections deal with a “________” of anesthetic into a ______ area?

A

flooding

small

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9
Q

A Field Block Injection deposits anesthetic near a _______?

A

large terminal nerve branch

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10
Q

Field Blocks are also called?

A

infiltration/supraperiosteal

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11
Q

A Field Block involves numbing the _____ in and around how many teeth?

A

tissues

1-2

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12
Q

What is the insertion point for a Field Block?

A

height of mucobuccal fold

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13
Q

Where do you deposit anesthetic in a Nerve Block Injection?

A

Main Nerve Trunk

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14
Q

What is an example of a Nerve Block Injection?

A

PSA

IA

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15
Q

Insertion for a MSA injection is between ______ at the height of the _______ with the bevel towards _____?

A

MX premolars (apical to 2nd)
mucobuccal fold
bone

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16
Q

What structures are anesthetized by a MSA injection?

A

1st and 2nd premolar pulp chambers
Mesiobuccal Root of MX 1st molar
Buccal tissue/bone of these structures

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17
Q

Insertion for a PSA injection is at the height of the _______ apical to the ______ ______

A

mucobuccal fold

MX 2nd molar

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18
Q

What depth does the needle insert on a PSA injection?

A

16mm

1/2 of long , 3/4 of a short

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19
Q

What structure could cause a positive aspiration when performing a PSA injection?

A

pterygopalantine plexus

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20
Q

All Maxillary injections require a ______ needle?

A

short

21
Q

What structures are anesthetized during a PSA injection?

A

1st, 2nd, 3rd, molar pulps, buccal periodontum and bone.

22
Q

What structure is sometimes missed when doing a PSA injection? How often?

A

Mesiobuccal root of the MX 1st molar

28%

23
Q

Insertion for a ASA injection is at the height of the ______ apical to ______ teeth?

A 
mucobuccal fold
1st premolar (anywhere from second premolar to the central incisor is ok)
24
Q

What is the deposition site for an ASA injection?

A

Infraorbital foramen

25
Q

What structures are anesthetized during an ASA injection?

A

Pulps, buccal periodontum and bone of MX centrals through canine
Lower eyelid, upper lip, lateral border of nose

26
Q

What structure is sometimes affected when administering an ASA injection? How often?

A

Premolars and MB root of 1st molar

72%

27
Q

What is the insertion point for a Greater Palatine Nerve Block?

A

Anterior to the greater palatine foramen

28
Q

What are 2 landmarks for the Greater Palatine Nerve Block injection?

A

Greater Palatine Foramen

Junction between MX alveolar process and the palatine bone

29
Q

What structures are anesthetized by the Greater Palatine Nerve Block?

A

Posterior portion of the hard palate

and soft tissues UP TO the 1st premolar and over to the midline of the palate

30
Q

Where is the insertion point for the Nasopalatine Nerve Block?

A

lateral to the incisive papilla

31
Q

What is the deposition site for a Nasopalatine Nerve Block?

A

Incisive Foramen

32
Q

What structures are anesthetized by the Nasopalatine Nerve Block?

A

Anterior portion of the hard palate BILATERALLY

from the MESIAL of the 1st premolars to the midline

33
Q

Palatal INFILTRATIONS affect _____ ______ in the immediate vicinity?

A

soft tissue

34
Q

Where is the target/insertion point for palatal infiltration injections?

A

5-10 mm away from free gingival tissues

35
Q

How much LA do you give for a supraperiosteal injection

A

1/3 cartridge (0.6mL)

36
Q

Avg tissue depth for PSA

A

16mm

37
Q

Hemophiliac a should not receive what MX injection

A

PSA

38
Q

Avg amount of LA given on PSA

A

0.9-1.8mL

39
Q

Avg amount of LA used in MSA?

A

0.9-1.2mL

40
Q

Avg depth for a ASA

A

16mm (1/2 long needle)

41
Q

Avg amount of LA used in ASA?

A

0.9-1.2mL

42
Q

Avg depth for greater palatine

A

5mm

43
Q

Avg amount of LA used in Greater Palatine

A

0.45-0.6mL

1/4-1/3 cart

44
Q

Avg amount of LA used in Nasopalatine

A

0.45mL

1/4 cart

45
Q

Avg amount of LA used in Palatal infiltrations

A

0.2-0.3mL

Stopper width

46
Q

Avg amount of LA used in AMSA?

A
  1. 4-1.8mL

0. 5mL per min

47
Q

Avg amount of LA used in Palatal-ASA?

A
  1. 4-1.8mL

0. 5mL per min

48
Q

How far do you penetrate tissue in a Palatal-ASA?

A

6-10mm into incisive canal

Local Anesthesia (7 decks)

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