Radiographic recognition of dental caries

Question 1

• one of the most prevalent human
  diseases
  • associated with highly refined sugar and
  retentive food diets that remains
  prevalent in lower socio-economic groups.
  • greatest cause of tooth loss <35 years

Answer 1

Dental caries

Question 2

______ patho physiology: related to bacterial adhesion to tooth
surfaces and plaque formation

Answer 2

Dental caries

Question 3

What are the 2 factors affecting caires presentation?

Answer 3

Angle of beam

Placement of image receptor

Question 4

___ caries:
in enamel layer
-ranges from a demineralization effect at proximal surface and can extend axiallyto contact DEJ

Answer 4

Initial caries

Question 5

What is diagnosis?

Answer 5

Initial caries

Question 6

____ caires

• spreading vertically at DEJ and/or
• extending axially less than halfway in dentin layer

Answer 6

Moderate caries

Question 7

What is diagnosis?

Answer 7

Moderate

Question 8

What is diagnosis?

Answer 8

Moderate

Question 9

_____ caries:

Greater than or equal to halfway into dentin layer and can extend axially to contact pulp

Answer 9

Advanced caries

Question 10

What is diagnosis?

Answer 10

Advanced caries

Question 11

What is diagnosis?

Answer 11

Advanced caries

Question 12

\_\_\_ caries
- Saucerized or scooped-out appearance
- 50% prevalence in geriatric population
- Most common in B premolar regions, 
then, followed by Li & interproximal areas
-anaerobic bacteria

Answer 12

Root surface

Question 13

What is diagnosis?

Answer 13

Root surface caries

Question 14

_____ caries:

Radiolucent areas of demineralization under or around a current restoration

Answer 14

Recurrent caries

Question 15

What is diagnosis?

Answer 15

Recurrent caries

Question 16

____ caries:
Difficult to localize on a single view
May superimpose pulp
-Can see clinically

Answer 16

Buccal lingual caries

Question 17

What is diagnosis?

Answer 17

B/Li caries

Question 18

ICDAS Classification:

Lesion within outer ½ of enamel

Answer 18

E1

Question 19

ICDAS Classification:

Lesion within inner ½ of enamel

Answer 19

E2

Question 20

ICDAS Classification:

Lesion within outer 1/3 of dentin

Answer 20

D1

Question 21

ICDAS Classification:

Lesion within middle 1/3 of dentin

Answer 21

D2

Question 22

ICDAS Classification:

Lesion within inner 1/3 of dentin

Answer 22

D3

Question 23

A. The dentin artifact simulates caries

B. Lesion is outlined by normal anatomic structures and is a relative radiolucency

Answer 23

Interproximal burnout

Question 24

_____ occlusal caries
• Difficult to detect on radiographs due to
- small width of the lesion
- density of superimposing enamel

Answer 24

Incipient occlusal caries

Question 25

____ occlusal caries:
• Broad-based thin radiolucent zone in dentin with
no changes in enamel
• Noticed as a relative increase in opacity between
pulp and caries

Answer 25

Moderate occlusal caries

Question 26

____ occlusal caries:
• Undermined enamel with gross loss of tooth
structure

Answer 26

Severe occlusal caries

Question 27

ICDAS diagnosis?

Answer 27

E1

Question 28

ICDAS diagnosis?

Answer 28

E2

Question 29

ICDAS diagnosis?

Answer 29

D1

Question 30

ICDAS diagnosis?

Answer 30

D1

Question 31

ICDAS diagnosis?

Answer 31

D2

Question 32

ICDAS diagnosis?

Answer 32

D2

Question 33

ICDAS diagnosis?

Answer 33

D3

Question 34

ICDAS diagnosis?

Answer 34

D3

Question 35

What is diagnosis?

Answer 35

Cervical burnout

Question 36

What is diagnosis?

Answer 36

Cervical burnout

Question 37

____ interproximal caries:
• Penetrates < ½ the enamel thickness as a
radiolucent notch on the outer surface of the
tooth

Answer 37

E1

Question 38

\_\_\_\_ interproximal caries:
• Penetrates > ½ the enamel thickness 
• May have an isosceles triangular outline with the 
base at the proximal surface
• Does NOT extend to DEJ

Answer 38

E2

Question 39

____ interproximal caries:
• Undermines enamel and extends into dentin
• at or axial to the DEJ
• Penetrates < 1/3 the outer peripheral dentin thickness

Answer 39

D1

Question 40

____ interproximal caries:
• The dentin lesion is a more extensive dentin lesion
• Penetrates to mid 1/3 of the dentin thickness

Answer 40

D2

Question 41

____ interproximal caries:
• The dentin lesion is more extensive than the enamel
lesion
• Penetrates > 2/3 (or inner 1/3) of the dentin thickness

Answer 41

D3