5. Advanced Techniques in LA Flashcards Preview

BDS2 CDS LA Symposium > 5. Advanced Techniques in LA > Flashcards

Flashcards in 5. Advanced Techniques in LA Deck (13):
1

Types of advanced LA techniques (6)

Palatal anaesthesia
Intraligamentary
Intraosseous
Jet techniques
Alternative IAN block techniques
New technology

2

Method of chasing the anaesthetic (5)

Interpapillary injection given buccally
Blanching occurs on gingivae buccally and palatally
Interpapillary injection given palatally
Palatal area blanches
Injection given more palatally into already anaesthetised area

3

Features of intraligamentary injections (4)

Injection directly into PDL to allow quicker diffusion of anaesthetic agent into alveolus
May cause root resorption
Difficult – tight space/lots of resistance
Mainly used for extractions

4

PDL anaesthesia efficacy is dependent on (4)

Procedure
Tooth
Resistance to injection
Anaesthetic solution

5

Features of intraosseous injections (2)

Injection directly into bone
Allows quicker application - more direct

6

Advantages of topical jet injectors (4)

For bleeding diatheses, where deep injections are contraindicated
Sole means of achieving LA
Prior to conventional technique
No needle

7

Disadvantages of topical jet injectors (4)

Expensive
Could cause soft tissue damage if careless
Frightening sight and sound (gunshot – compressed air)
Taste of solution (LA leaks out into mouth if not firmly pressed against mucosa)

8

Types of alternative IAN blocks (2)

Gow Gates method
Vazirani-Akinosi Technique

9

Gow Gates method (3)

Open mouth technique
Patient lying flat
Aim for neck of condylar process (higher than usual)

10

Vazirani-Akinosi Technique method (3)

Closed mouth technique
Useful for patients with trismus
Needle inserted into same side of mouth as injection site (between buccal aspect of teeth and buccal mucosa)

11

Types of new technology (2)

The Wand
CC Syringe

12

Features of the wand (3)

Utilised in paediatric dentistry
Looks like a pen/wand with small needle
Injects constant pressure, reducing pain sensation

13

Pressure during intraligamentary LA (4)

Hand-held syringe – 600psi
Peripress (intraligamentary device) – 1000psi
Typical car tyre – 30psi
The Wand – 265psi