Exam 3 Objectives and Radiographic Caries Diagnosis

Question 1

Define different classifications of caries

Answer 1

yes

Question 2

Clinical tools to detect caries

Answer 2

Mirror and Light
Explorer
Air

Question 3

Identify factors influencing caries interpretation

Answer 3

Interproximal caries
• Lesion is larger than it appears on radiograph • Cannot determine whether real “cavity” or just
demineralization from radiograph • Small lesions (class 1 and 2) don’t necessarily need to be
restored: may use fluoride to try to remineralize lesion

Question 4

Define arrested cares, recurrent caries and cervical burnout

Answer 4

yes

Question 5

Distinguish between root caries and cervical burnout

Answer 5

Cervical caries vs cervical burnout • Burnout generally more
“gradual” • Caries generally more defined
edge • *Caries does not usually occur
with normal bone height

Question 6

Can rampant and recurrant careis be veiwed on radiographs

Answer 6

yes

Question 7

Extends less than ½ way
throught the thickness of
enamel

Answer 7

Interproximal Caries- Incipient interproximal caries class I

Question 8

Extends more than ½
through the thickness
of enamel but does
not involve the DEJ

Answer 8

Moderate interproximal caries Class II

Question 9

Involves DEJ but less than ½ the distance to the pulp

Answer 9

Advanced Interproximal Caries Class III

Question 10

Extends through the enamel, through the dentin, and more than ½ the distance towards the pulp.

Answer 10

Severe Interproximal Caries Class IV

Question 11

Remineralized caries is

Answer 11

Arrested Caries

Question 12

Class 5 caries is found

Answer 12

root surface

Question 13

Also called: cemental caries, radicular caries and senile caries

Answer 13

root caries

Question 14

Buccal (facial) /Lingual Caries

must use

Answer 14

clinical evaluation

Question 15

Explain occlusal caries

Answer 15

Incipient (not pictured)
– Cannot be seen on a
dental image

• Moderate
– Extends to dentin – Appears as a think radiolucent line

• Severe
– Extends to dentin
– Appears as large
radiolucency – Clinically-cavitation
(hole)

Question 16

Radiolucent artifact appears
as a collar or wedge shaped
area between the CEJ and
the alveolar bone. • Result of curved shape of
tooth. • NOT CARIES!!!

Answer 16

CERVICAL Burnout

Question 17

___ generally has a more defined edge

caries or cervical burnout

Answer 17

CARIES

Question 18

• “Notching” at cervical
• More well-defined than
caries or burnout • Usually due to
toothbrush abrasion

Answer 18

Cervical Abrasion

Question 19

• Radiolucency around
edge of restoration
• May be blocked by
shadow of restoration

Answer 19

Recurrent Caries

Question 20

• Can be confused with
caries
• Clinical examination
important

a. Amalgam
b. cement
c. Enamel Hypoplasia

Answer 20

C.