Local Anaestheia of the madibular tissues

Question 1

What are the mandibular teeth supplied by?

Answer 1

Mandibular division of the trigeminal nerve

Question 2

What are the lingual soft tissues supplied by?

Answer 2

Lingual nerve

Question 3

What are the buccal soft tissues supplied by?

Answer 3

Long buccal nerve

Question 4

Why can we not carry out an infiltration injection on the mandibular teeth?

Answer 4

As the buccal plate of bone is thick and more dense

Needle would also have to travel a large distance through the cancellous bone

Question 5

What typeof injections can we give to anaesthetise mandibular teeth?

Answer 5

1, Inferior alveolar (dental) nerve block

2. Long buccal injection
3. Mental injection

Question 6

Which nerve are we anaesthetising when giving an Inferior alveolar (dental) nerve block?

Answer 6

The inferior alveolar nerve before it enters the ascending ramus of the mandible

Question 7

Name some of the anatomical landmarks we can use to help us deposit the LA In the cord place when giving anInferior alveolar (dental) nerve block

Answer 7

Identify:

1. The external oblique ridge
2. The internai oblique ridge

Question 8

What do we do once we have identifies textural and sternal oblique ridge when giving an inferior alveolar nerve bock?

Answer 8

We need to find the max concavity on the external oblique ridge and simultaneously palpate the internal oblique ridge

Question 9

Where do we insert the needle when giving an inferior alveolar nerve block?

Answer 9

We plate pad of th thumb the external oblique ridge and roll the thumb to the internal oblique ridgeTis gives us the site of the injection
We approach froth opposite side and the needle enters the soft tissue at the tip of the thumb

Question 10

What must we do when we are administering the LA into the soft issues?

Answer 10

Asperate

Question 11

What should you do if when you pirate you see blood in your cartridge?

Answer 11

Pull back the injection 1-2mm bee continuing

Question 12

Why do we inject the LA slowly into the soft tissues>

Answer 12

1. Patient comfort

2. If there is ay reaction to the solution this can be picked up early before to much LA has been injected

Question 13

Where do ew sect the needle when giving a long buccal injection?

Answer 13

We insert the needle in the mucosa just over the external oblique ridge
Once we hit bone we retreat slightly and then start injecting

Question 14

When do we give a mental injection?

Answer 14

when we want too aesthete the lower pre molars and canines

Question 15

Where does the mental foramen lie?

Answer 15

Between the apices of the lower pre molars

Question 16

How can we estimate where the mental foramen is clinically?

Answer 16

By following the long axis of the lower pre molar teeth and estimating where their apices lie

Question 17

What must we do after injecting th LA when giving a mental injection

Answer 17

Message the LA solution forwards and downwards to ensure good penetration