LA

Question 1

What teeth would you use articaine on?

Answer 1

6, 7, 8’s

Question 2

When would you use a block?

Answer 2

On lower 6’s

Question 3

How long is a short needle?

Answer 3

25mm

Question 4

What is the gauge of a short needle?

Answer 4

30

Question 5

How long is a long needle?

Answer 5

35mm

Question 6

What is the gauge of a long needle?

Answer 6

27

Question 7

What cartridges are latex free?

Answer 7

Lignospan special
Utilycaine
Scandonest
Bartinest
Septa nest
Citanest 3% with octapressub

Question 8

How many ml are in a cartridge?

Answer 8

2.2ml or 1.8ml

Question 9

What is in a cartridge?

Answer 9

Anaesthetic agent
+/- vasoconstrictor
+/- stabiliser/ preservative
Isotonic carrier medium

Question 10

What does aspiration aid?

Answer 10

The prevention of intravascular injection

Question 11

How is aspiration achieved?

Answer 11

By lowering the pressure in the cartridge

Question 12

What is the problem with aspiration?

Answer 12

Could give false negatives (may be due to needle blockage)

Question 13

What should you check for aspiration? (3)

Answer 13

• check for the “peg” on the needle end of the inside of the syringe barrel
• check bung
• check the plunger

Question 14

Where should the bevel be placed?

Answer 14

Black bit should be on the side nearest the tooth

Question 15

How would you do an infiltration on the lower incisors? What is the success rate of this?

Answer 15

0.5ml lidocaine labial
0.5ml lidocaine lingual
93% success

Question 16

What is the gauge number?

Answer 16

Width of the needle