Aesthetics

Question 1

The changes in angulation of a tooth as it emerges from the gingiva

Answer 1

Emergence profile

Question 2

What will happen if you over contour a mesial restoration on tooth 21?

Answer 2

You may unintentionally create a diastema and the tooth will appear asymmetric

Question 3

What will happen if you under-contour the mesial aspect of tooth 21?

Answer 3

Can lead to an overhanging ledge which may become a plaque trap

Question 4

What is an occlusal can’t?

Answer 4

The vertical position of the teeth when the left and right sides are different

Question 5

The visual relationship between your upper gums,lips and teeth

Answer 5

Smile line

Question 6

If someone has a high smile line, how will this appear?

Answer 6

The upper labial gingiva can be seen when smiling

Question 7

If someone has a low smile line, how will this appear?

Answer 7

Upper lip will conceal gingiva when smiling

Question 8

What is the buccal corridor?

Answer 8

The black area hat can be seen in the corners of your mouth when you smile

Question 9

What is gingival zenith?

Answer 9

The most apical aspect of free gingival margin

Question 10

How many lobes do central incisors have?

Answer 10

3

Question 11

What are the three prominent features of central incisor tooth anatomy?

Answer 11

• lobes
• development grooves
• transitional line angles

Question 12

What three factors is shade selection of composite aesthetics based on?

Answer 12

• hue
• chroma
• value

Question 13

Where in the mouth would you compare the shade tab to to ascertain the hue?

Answer 13

To the cervical area of the tooth or the canine

Question 14

When selecting shade for teeth, what is important to do?

Answer 14

• take shade of moist teeth
  -take shade from middle 1/3 of tooth

Question 15

What is the benefit of using retraction cord?

Answer 15

Allows for clear peripheral margins for lesions to be established
And
Enhances haemostasis during restoration phase

Question 16

Why is it good practice to use a rubber dam?

Answer 16

Ensures optimum moisture control and dramatically reduces the risk of foreign body aspiration

Question 17

Why is a small round diamond bur ideal to use in anterior cavity prep?

Answer 17

To minimise tooth structure loss in small cavities

Question 18

In what situation may use of a matrix band between anterior central incisors not be feasible?

Answer 18

When there is a large diastema or if a patient is in the mixed dentition

Question 19

What are the two main advantages to using a crown form?

Answer 19

• less intra oral clinical time required
• easy to achieve a smooth glossy finish

Question 20

What are the three main disadvantage to using crown forms?

Answer 20

• be weary of composite overhangs
• can be time consuming
• every tooth is unique so a significant amount of characterisation is required

Question 21

What direction should you apply gentle tension to the matrix strip to help create a nice contact point?

Answer 21

Coronal direction

Question 22

What would happen if you pulled the matrix band in apical direction?

Answer 22

Will create an unintentional diastema

Question 23

Why is placing a hole at the incisal angle of the crown a good idea?

Answer 23

It allows excess material to extrude and helps prevent the formation of air bubbles and voids

Question 24

In what situation would a full crown form be used over a sectional crown form?

Answer 24

When there is a more substantial fracture

Question 25

How does the enamel appear in young patients?

Answer 25

Milk white and translucent

Question 26

As we age, what does enamel look like on anterior teeth?

Answer 26

Thins and tooth appears less monochromatic

Question 27

What are developmental grooves on central and lateral incisors?

Answer 27

Grooves that divide the lobes and run parallel to the long axis of the tooth

Question 28

Why is the cervical area of the canine the best tooth to compare with a shade tab to ascertain the hue of a tooth?

Answer 28

It has the highest density of dentine

Question 29

what is the golden proportion ratio?

Answer 29

0.618

Question 30

If the holes in a rubber dam are punched too close together, what could happen?

Answer 30

Holes pull away from the teeth causing spacing and leakage

Question 31

If the holes in a rubber dam are punched too far apart, what could happen?

Answer 31

Rubber dam bunches between the teeth

Question 32

If the holes in a rubber dam are punched too low, what could happen?

Answer 32

Rubber dam covers the patients nose

Question 33

If the holes in a rubber dam are punched too high, what could happen?

Answer 33

Rubber dam does not extend over the upper lip

Question 34

How can an invisible transition between the tooth surface and restoration of an anterior tooth be achieved?

Answer 34

1. Having a bevel
2. Polishing the enamel with soflex discs to remove loosely bound enamel rods

Question 35

What is the black soflex disc used for?

Answer 35

Gross removal of composite resin

Question 36

What is the purple soflex disc used for?

Answer 36

Remove imperfections and finishing

Question 37

What is the green soflex disc used for?

Answer 37

Polishing

Question 38

What is the pink soflex disc used for?

Answer 38

Fine polish to give lustre