Diagnosis and treatment planning

Question 1

what does stage 00 of a carious lesion mean?

Answer 1

sound surface
no signs of caries

Question 2

what does stage 02 of a carious lesion mean?

Answer 2

stage at which decay should be detected

white spot lesion

Question 3

what does stage 04 of a carious lesion mean?

Answer 3

can see shadow on occlusal surface

Question 4

what does stage 05 of a carious lesion mean?

Answer 4

cavity with visible dentine

extent: less than a half of occlusal surface

Question 5

what does stage 06 of a carious lesion mean?

Answer 5

cavity extends over half of tooth surface

extensive lesion or pulp involvement

Question 6

if a patient has high risk of caries how often should radiographs be taken?

Answer 6

every 6 months

Question 7

if a patient has moderate risk of caries how often should radiographs be taken?

Answer 7

every 12-18 months

Question 8

if a patient has low risk of caries how often should radiographs be taken?

Answer 8

every two years

Question 9

what is a D1 lesion?

Answer 9

in outer 1/3 of dentine

Question 10

what is a D2 lesion?

Answer 10

in middle 1/3 of dentine

Question 11

what is a D3 lesion?

Answer 11

in inner 1/3 of dentine

Question 12

what is the level of this lesion?

Answer 12

D3

Question 13

what is the level of this lesion?

Answer 13

P level - its in the pulp

Question 14

what is the level of this lesion?

Answer 14

E level lesion - limited to enamel

Question 15

what is the level of this lesion?

Answer 15

D1 lesion

Question 16

Caries on the occlusal surface only presents on bitewing if ?

Answer 16

its moderate or advanced

Question 17

what are the visual and radiographic presentations of initial occlusal carious lesions?

Answer 17

non-cavitated, dentine shadow or minimal enamel cavitation

no radiographic presentation

Question 18

what are the visual and radiographic presentations of advanced occlusal carious lesions?

Answer 18

dentine shadow or cavitation with visible dentine

radiograph - inner 1/3 dentine

Question 19

what are the visual and radiographic presentations of initial proximal carious lesions?

Answer 19

white spot lesion or shadow

radiograph - enamel confined

Question 20

what are the visual and radiographic presentations of advanced proximal carious lesions?

Answer 20

enamel cavitation and dentine shadow or cavity with visible dentine

radiograph: may extend into inner 1/3 dentine

Question 21

what is an initial carious lesion?

Answer 21

lesion up to enamel dentine junction

Question 22

what is a moderate carious lesion?

Answer 22

lesion in dentine and may extend into middle 1/3 of dentine

Question 23

what is an extensive carious lesion?

Answer 23

extends into inner 1/3 of dentine clear band of dentine separating it from pulp