UR1 composite with putty index

Question 1

Describe how you would take the putty index of the lower 3-3.

Answer 1

1. Ensure the putty covers the full palatal surface.
2. Keep approximately a finger width of material beyond the incisal edge to provide strength.

Question 2

To simulate a sever defect, which bur should be used to partially decoronate the UR1 and where should the but be placed?

Answer 2

Chamfer bur - place slightly below the contact points.

Question 3

What should the measurement of the bevel be?

Answer 3

2mm

Question 4

What should be placed on the adjacent teeth to protect them during air abrasion?

Answer 4

PTFE strip - support when using the air abrasion to prevent it being dislodged.

Question 5

On patients, what could be used instead of PTFE to protect the adjacent teeth from air abrasion?

Answer 5

Dental Dam

Question 6

How long should the surfaces to be bonded to be air abraded for?

Answer 6

20 seconds.

Question 7

How should the dental dam be placed prior to air abrasion?

Answer 7

Place 3-3 with floss ligatures.

Question 8

How do you use the palatal index to give an indication of where to add the composite?

Answer 8

Use a straight probe to score the palatal index.

Question 9

How long should the etch be applied to both dentine and enamel for?

Answer 9

20 seconds in total:

Enamel - 5 seconds.
Dentine - 15 seconds more.

Question 10

How long should the etch be washed and dried?

Answer 10

Wash for 10 seconds, dry for 2-3.

Question 11

How long should the prime and bond be place for?

Answer 11

20 seconds

Question 12

How long should the prime and bond be dried for?

Answer 12

5 seconds

Question 13

How should the dentine shade of composite be dispensed?

Answer 13

Onto a clean mixing pad, using a flat plastic (NOT HANDS) to roll.

Place a dampens over the top to prevent curing.

Question 14

What instrument can be used to achieve a thin layer of composite on the putty index?

Answer 14

A small brush.

Question 15

In what order should the tooth be built up?

Answer 15

1. Palatal Wall (using putty index)
2. Mesial Wall
3. Distal Wall

Question 16

Which shade should be used for the palatal wall and the centre of the tooth?

Answer 16

Dentine Shade D1

Question 17

Which shade of composite should be used to build the mesial, distal and labial walls?

Answer 17

Universal shade.

Question 18

What number of dentine lobes should be replicated and feathered along the incisal edge to create a gradual transition?

Answer 18

3

Question 19

Which type of matrix should be used to build the mesial and distal walls?

Answer 19

Sectional Matrix

Question 20

Which shades should be used to build up the outer labial surface following the use of the dentine and universal shades?

Answer 20

Enamel shades - blend with uncured universal shades.

Question 21

Which finishing bur can be used to get a high gloss finish?

Answer 21

Enhance PoGo bur.