Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BDS2 CDS LA Symposium > 2. Overview of LA Techniques > Flashcards

2. Overview of LA Techniques Flashcards

1
Q

Function of LA

A

To prevent pain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Definition of pain

A

An unpleasant sensory and emotional experience associated with actual or potential tissue damage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Function of vasoconstrictors in LA (2)

A

Increase length of action of LA

Encourage haemostasis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is usually the source of LA allergy

A

Preservatives

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Types of LA injections (2)

A

Infiltration

Nerve block

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Process of LA infiltration

A

LA solution deposited around the terminal branches of nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Functions of LA infiltration (2)

A

Used to anaesthetise soft tissues

Used to produce plural anaesthesia where alveolar bone is thin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Process of LA nerve block

A

LA deposited beside nerve trunk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Functions of LA nerve block (3)

A

Abolishes sensation distal (more terminal) to site
Used to produce soft tissue anaesthesia
Used where bone is tooth thick to allow infiltration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Types of anaesthesia in the maxilla (3)

A

Anaesthesia of pulp - buccal infiltration
Anaesthesia of buccal gingiva - buccal infiltration
Anaesthesia of palatal gingiva - palatal injection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Types of anaesthesia in the mandible (3)

A

Anaesthesia of pulp - 6-8 (IDB), 3-5 (mental nerve block), 1-3 (buccal/labial infiltration)
Anaesthesia of buccal gingiva - 6-8 (long buccal infiltration), 3-5 (infiltration/long buccal/mental nerve block), 1-3 (buccal/labial infiltration)
Anaesthesia of lingual gingiva - secondary part of IDB if given/infiltration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The tissues to be anaesthetised depends on the procedure (3)

A

Restoration - dental pulp
Extraction - pulp/gingiva
Scaling - gingiva or pulp/gingiva

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Types of syringe barrels and LA uses (2)

A

Infiltration - short 25mm 30G

IDB - long 30mm 27G

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Important cartridge checks (2)

A

Check expiry date

Check batch number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Preparation of patient (4)

A

Check MH
Position in chair
Dry mucosa
Apply topical anaesthesia for 3-4mins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Types of topical anaesthetic (2)

A

2% lignocaine (minty)

20% benzocaine (bubblegum)

17
Q

Injection technique (5)

A 
Stretch mucosa
Puncture mucosa quickly (use distraction)
Position needle tip at target point
Aspirate
Inject slowly (no less than 30s)
18
Q

Function of the bevel

A

To provide a cutting surface that offers little resistance to mucosa as the needle penetrates and withdraws from the tissue

19
Q

Correct bevel orientation

A

Bevel towards operator during needle placement will leave the lumen unobstructed

20
Q

Infiltration needle position (3)

A

Bevel away from bone
If bevel is towards bone, edge of the needle is likely to penetrate the periosteum
Periosteal injections are more likely to evoke a painful response

21
Q

Definition of aspiration

A

Blood in cartridge

22
Q

Importance of aspiration

A

Allows operator to check if they have perforated a BV (which would cause systemic effects)

23
Q

Features of infiltration anaesthesia (2)

A

Pulpal anaesthesia limited to one/two teeth

Soft tissue anaesthesia

24
Q

Advantages of infiltration anaesthesia (2)

A

High success rate
Technically easy
Atraumatic

25
Q

Disadvantages of infiltration anaesthesia (3)

A 
Infection
Dense bone (mandible)
26
Q

Blocks in the maxilla (3)

A

PSA
MSA
ASA

27
Q

Sharps disposal (5)

A

Needle is double clicked to prevent reuse and removed from handle
Needle and sliding sheath are placed in sharps bin (orange bin)
LA cartridge placed in blue bin
Bung is removed from handle and placed in clinical waste (orange stream waste)
Handle and tag are kept to be decontaminated (in dirty room/box)

28
Q

Important landmarks for IDBs (5)

A 
Coronoid notch of mandibular ramus
Posterior border of mandible
Pterygomandibular raphe
Lower premolar teeth of opposite side
Site of anaesthetic deposition is in the region of the mandibular foramen
29
Q

Limitations of an inferior position of IDB (3)

A

Increased onset time
Increased lingual nerve injury
No change in intravascular injection

30
Q

Confirming anaesthesia tips (3)

A

Ask how it feels (rubbery, numb, swollen/fat)
For IDB - tongue/lip to midline should feel numb
Consider testing with probe

BDS2 CDS LA Symposium (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions