Management of proximal caries Flashcards

1
Q

Are class II and III cavities the same?

A

Yes, proximal surface of patseir and anterior teeth

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2
Q

How can you diagnose class II/III caries?

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

How will caries appear under transillumination?

A

A darker region

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4
Q

What teeth would you use transillumination for?

A

Anterior teeth

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5
Q

How would you detect posterior class II caries?

A

Radiographs bitewing

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6
Q

What colour do caries appear on a radiograph?

A

Darker

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7
Q

When can you leave caries confined to enamel?

A

Fluoride and enamel will remineralise, the caries may arrest

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8
Q

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

A

Need to intervene

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9
Q

What is the contact area?

A

The area that touches the adjacent tooth

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10
Q

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

A

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

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11
Q

What is the dip in interproxiaml papilla called?

A

Col

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12
Q

Where is the contact area of posterior teeth?

A

Found more Buccally

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13
Q

Where is the contact area on anterior teeth?

A
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14
Q

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

A

To detect caries which are under the contact point

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15
Q

How are the majority of proximal caries accessed?

A

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

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16
Q

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

A

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

17
Q

What is proximal box prep?

A
18
Q

How can you improve the resistance of a proximal restoration?

A

Grooves, slots, rails can be made in the wall

19
Q

What is the gingival floor?

A

Base of the proximal box

Part for the box closest to the gingival tissues

20
Q

What do you need to do to the gingival floor?

A

Flat or slight incline

21
Q

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

A

Scoop box form

Gets wider towards the occlusal surface

22
Q

What depth should the preparation be?

A

1.5mm

23
Q

Would you use amalgam for an initial lesion?

A

No, as it is more destructive

You need to remove all unsupported enamel

24
Q

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

A

90 degrees

25
Q

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

A

No

26
Q

What shape of preparation would you do for a composite?

A

Scoop form

27
Q

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

A

Pear-shaped bur

28
Q

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

A

Yes

Remove friable enamel but can keep unsupported enamel

29
Q

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

A

Yes

30
Q

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

A

No, both amalgam and composite

31
Q

What is a tunnel preparation?

A

Gains access to the approximal caries while maintaining the marginal ridge

32
Q

When would you use a tunnel preparation?

A

Small curious lesions

33
Q

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

A

Occlusally, buccally or lingually

34
Q

What material is used for a tunnel preparation?

A

Glass ionomer or composite

35
Q

What is the advantage of a tunnel preparation?

A

Conservative of tooth tissue

36
Q

What are the disadvantages of tunnel preparation?

A

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

37
Q

What would you use to fill root caries?

A

Glass ionomer