Yellow And Blue Books

Question 0

When shouldn’t we use a eugenol lining?

Answer 0

With composite as it plasticises the resin base

Question 1

What are the benefits of calcium hydroxide lining?

Answer 1

Remineralise remaining altered dentine

Stimulate odontoblasts to make reparative dentine

Question 2

What are the advantages of a GIC lining?

Answer 2

Naturally adheres
Fluoride
Command set
Bonds to overlying composite

Question 3

What happens if you over etch dentine?

Answer 3

Pulpal inflammation and pain

Question 4

What are the functions of a matrix band?

Answer 4

Forms the missing wall of the tooth
Helps restore contact point
Permits close adaption of the amalgam to the cervical margin of the tooth using wooden wedges

Question 5

Which way should the latch be engaged on a siqveland matrix band?

Answer 5

Gingivally

Question 6

What is the palodent matrix system?

Answer 6

Used in composite class 2
Small bit of foil held in place by bitine ring

Question 7

What are the benefits of a chamfer finish?

Answer 7

Seen readily
Resists distortion
Reasonable adaption to finish line at tooth margin

Question 8

What angle is a chamfer?

Answer 8

135

Question 9

What’s the maximum taper acceptable on crowd walls?

Answer 9

5 degrees

Question 10

What is trim?

Answer 10

High molecular weight resin
Consists of poly ISO butyl methacrylate
Lines a crown

Question 11

What is temp bond?

Answer 11

Luting zinc oxide eugenol

Remove excess after set

Question 12

Discuss toffelmire matrix bands?

Answer 12

Allows band to be removed from holder

Boomerang shape adopts flare of tooth

Question 13

Where should the open end of a toffelmire be?

Answer 13

Facing gingival tissues, to allow the holder to be separately removed

Question 14

Describe an automatrix

Answer 14

Adjustable stainless steel band that can be tightened using a hand wrench
Taper to create anatomy
After amalgam insertion, band can be removed by cutting

Question 15

Describe copper bands

Answer 15

Wide range of diameters but standard height
Adapted with rotary instruments
Not flared
Can’t easily be adjusted to create a snug fit
Thicker so poor contact point
Can be left in situ

Question 16

What is GIC conditioner?

Answer 16

10% poly acrylic

Removes smear layer and improves bond strength

Question 17

Which etch do we use with compomers?

Answer 17

Maleic and polyacrylic acid

Question 18

What are the advantages of bevelling the enamel margins?

Answer 18

Provides a large sa for bonding
Reduces the amount of microleakage
Cross cuts the prisms and gives better etch pattern
Blends composite into the surrounding tooth tissue

Question 19

What are the disadvantages of bevelling?

Answer 19

Damage to the adjacent tooth
Lacerated the gingiva and rubber dam
Increased cavity size

Question 20

What types of mirrors are there?

Answer 20

Plain vs magnified

Front surface reflecting vs rear

Question 21

What are the uses of a dental mirror?

Answer 21

Retracting soft tissues
Protecting tissues
Indirect vision
Reflecting light
Trans-illumination

Question 22

What are the uses of a probe?

Answer 22

Diagnosis
Removing plaque
Checking dentine in cavity
Checking restoration margins

Question 23

What are the types of probes?

Answer 23

Straight
Perio
Briault

Question 24

What’s the difference between a discoid and spoon excavator?

Answer 24

Discoid has flat upper surface whilst spoon is concave

Question 25

What are the uses of flat plastics?

Answer 25

Transfer and shape dental cements or restorative material where a pressure is not required to condense

Question 26

How can we tell the difference between a wards cared and a half hollenbach?

Answer 26

Wards is is slimmer and pointer with a flat plastic on the other end

Question 27

Describe an airotor

Answer 27

400 000 rpm
Less torque
Water spray
Friction grip burs

Question 28

Describe a low speed handpiece

Answer 28

Contra angled or straight
High torque 
Max 40 000 rpm, usually 3-4000
Normally withou water 
Latch grip burs