Mandibular Anaesthesia Flashcards Preview

M3 Pain and Pain Management > Mandibular Anaesthesia > Flashcards

Flashcards in Mandibular Anaesthesia Deck (25)
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1

Give the lateral border of the pterygomandibular space

the ramus

2

Give the medial border of the pterygomandibular space

the medial pterygoid muscle

3

Give the superior border of the pterygomandibular space

the lateral pterygoid muscle

4

Give the anterior border of the pterygomandibular space

the buccinator muscle

5

Give the posterior border of the pterygomandibular space

the parotid gland

6

Name the branches of V3

Long Buccal Nerve
Lingual Nerve
Inferior Alveolar Nerve
Incisive Nerve
Mental Nerve

7

What does the long buccal nerve numb when anaesthetised?

Posterior buccal tissues

8

What does the lingual nerve numb when anaesthetised?

Lingual soft tissues

9

What does the inferior alveolar nerve numb when anaesthetised?

Mandibular teeth

10

What does the mental nerve numb when anaesthetised?

Labial soft tissues

11

What does the incisive nerve numb when anaesthetised?

Mandibular incisors

12

Name the 3 main techniques of local anaesthesia

Topical; infiltration; nerve block

13

Name the supplementary local anaesthesia techniques

Intraosseous; intrapapillary; intraligamentary; intra-pocket

14

What is the traditional IANB technique

Halsted technique

15

What is the aim of the Halsted technique?

To deposit local anaesthetic within 1mm of the inferior alveolar nerve before it enters the mandible at the mandibular foramen

16

What are the 2 main landmarks for IANB?

pterygomandibular raphe and coronoid notch

17

What type of needle is used for IANB?

35 mm (long), 27 gauge

18

What sort of anaesthetic solution is used for IANB?

2mm of 2% Lidocaine Hydrochloride with 1:80,000 adrenaline

19

Describe the Halsted technique for IANB

Mouth open wide
Identify pterygomandibular raphe
Place thumb in coronoid notch
Identify injection point
Insert needle until bone is touched
Retract slightly and aspirate
Inject slowly - 1ml per minute

20

What is the injection point for the Halsted technique?

Midpoint of thumb nail; midpoint of medial border of pterygomandibular raphe; barrel of needle over contralateral premolars; occlusal plane of molars.

21

What is the key sign for successful anaesthesia of IANB?

Numb lower lip

22

What type of needle is used for a lingual nerve block?

35mm (long), 27 gauge

23

What sort of anaesthetic solution is used for lingual nerve block?

2.2ml of 2% lidocaine hydrochloride with 1:80,000 adrenaline

24

What is the key sign for successful anaesthesia of lingual nerve block?

numb ipsilateral tongue

25

Why are blocks not reliable for the incisor teeth?

due to cross over of innervation from contralateral side