ICDAS

Question 1

First visual change in enamel seen only after prolonged air drying

Answer 1

1

Question 2

Definite visual change in enamel

Answer 2

2

Question 3

Localized enamel breakdown without clinical visual sign of dentin involvement

Answer 3

3

Question 4

Underlying dark shadow from dentin

Answer 4

4

Question 5

Definite cavity with visible dentin

Answer 5

5

Question 6

Large distinct cavity with visible dent

Answer 6

6

Question 7

Not sealed or restored

Answer 7

0

Question 8

Sealant, partial

Answer 8

1

Question 9

Sealant, full

Answer 9

2

Question 10

Tooth colored restoration

Answer 10

3

Question 11

Amalgam restoration

Answer 11

4

Question 12

Stainless steel crown

Answer 12

5

Question 13

Porcelain, gold, PFM crown

Answer 13

6

Question 14

Lost or broken restoration

Answer 14

7

Question 15

Temporary restoration

Answer 15

8

Question 16

No evidence of caries or change in enamel translucency after drying

Answer 16

0

Question 17

When seen wet, there is no evidence of change but after prolonged drying, a carious opacity (white or brown lesion) is visible
- Seen in buccal or lingual surface

Answer 17

1

Question 18

Lesion may be seen directly when viewed from buccal or lingual
- When viewed from the occlusal, it may be seen as a shadow confined to the enamel, seen through the marginal ridge

Answer 18

2

Question 19

Once dried, there is distinct loss of enamel when viewed buccally or lingually

Answer 19

3

Question 20

Appears as a shadow of discolored dentin visible beneath an intact enamel - Seen when wet
- May appear grey, blue or brown

Answer 20

4

Question 21

A cavitation seen with exposed dentin
- A probe can be used to determine the depth if it reaches the dentin

Answer 21

5

Question 22

-Obvious loss of tooth structure
- Extensive cavity that is deep or wide and dentin is clearly visible on both walls and base
- At least half of the tooth is involved or possibly reaching the pulp

Answer 22

6