Management of proximal caries

Question 1

Are class II and III cavities the same?

Answer 1

Yes, proximal surface of patseir and anterior teeth

Question 2

How can you diagnose class II/III caries?

Answer 2

1. If you can see a cavity
2. Can transiluminage if it is early on
3. Bitewing radiographs

Question 3

How will caries appear under transillumination?

Answer 3

A darker region

Question 4

What teeth would you use transillumination for?

Answer 4

Anterior teeth

Question 5

How would you detect posterior class II caries?

Answer 5

Radiographs bitewing

Question 6

What colour do caries appear on a radiograph?

Answer 6

Darker

Question 7

When can you leave caries confined to enamel?

Answer 7

Fluoride and enamel will remineralise, the caries may arrest

Question 8

What do you do if the caries have reached the ADJ, obviously cavitation or visible on BW?

Answer 8

Need to intervene

Question 9

What is the contact area?

Answer 9

The area that touches the adjacent tooth

Question 10

What is a common problem when starting with regards to the contact area?

Answer 10

Common error is to not remove the contact area, the contact area is often above the various lesion

Question 11

What is the dip in interproxiaml papilla called?

Answer 11

Col

Question 12

Where is the contact area of posterior teeth?

Answer 12

Found more Buccally

Question 13

Where is the contact area on anterior teeth?

Answer 13

Question 14

Why do you need to take a radiograph of posterior teeth?

Answer 14

To detect caries which are under the contact point

Question 15

How are the majority of proximal caries accessed?

Answer 15

Through marginal ridge but it’s important to consider whether a buccal/lingual approach is more conservative of tooth tissue

Question 16

What is the most common way to access approximal caries of posterior teeth?

Answer 16

Through the occlusal marginal ridge, not right next to the adjacent tooth

Question 17

What is proximal box prep?

Answer 17

Question 18

How can you improve the resistance of a proximal restoration?

Answer 18

Grooves, slots, rails can be made in the wall

Question 19

What is the gingival floor?

Answer 19

Base of the proximal box

Part for the box closest to the gingival tissues

Question 20

What do you need to do to the gingival floor?

Answer 20

Flat or slight incline

Question 21

What is the cavity design for a class II amalgam resto prep?

Answer 21

Scoop box form

Gets wider towards the occlusal surface

Question 22

What depth should the preparation be?

Answer 22

1.5mm

Question 23

Would you use amalgam for an initial lesion?

Answer 23

No, as it is more destructive

You need to remove all unsupported enamel

Question 24

What should the cavo-surface angle be for amalgam prep?

Answer 24

90 degrees

Question 25

When making the initial cavity, should you drill all the way through the marginal ridge?

Answer 25

No

Question 26

What shape of preparation would you do for a composite?

Answer 26

Scoop form

Question 27

What bur would you use to make a scoop form cavity prep shape?

Answer 27

Pear-shaped bur

Question 28

Can you keep unsupported enamel if you are going to do a composite restoration?

Answer 28

Yes Remove friable enamel but can keep unsupported enamel

Question 29

Do you need to place a matrix for class II/III cavities?

Answer 29

Yes

Question 30

Do you on,y use a matrix band for amalgam?

Answer 30

No, both amalgam and composite

Question 31

What is a tunnel preparation?

Answer 31

Gains access to the approximal caries while maintaining the marginal ridge

Question 32

When would you use a tunnel preparation?

Answer 32

Small curious lesions

Question 33

How would you apparatchik a class II with a tunnel preparation?

Answer 33

Occlusally, buccally or lingually

Question 34

What material is used for a tunnel preparation?

Answer 34

Glass ionomer or composite

Question 35

What is the advantage of a tunnel preparation?

Answer 35

Conservative of tooth tissue

Question 36

What are the disadvantages of tunnel preparation?

Answer 36

Technically difficult Margins, ridge prone to fracture Poor access to. Aries ADJ, therefore residual caries can remain Only use when it is a small lesion

Question 37

What would you use to fill root caries?

Answer 37

Glass ionomer