test 2, caries diagnosing part 2

Question 1

Active pit and fissure caries are usually ____ and with a ___ surface

Answer 1

white, matt

Question 2

what does the surface look like if a pit and fissure lesion has not cavitated?

Answer 2

the surface has a greyish lesion/white halo.

Question 3

what do active lesions feel like while probing?

Answer 3

it sticks.

Question 4

Diagnodent

Answer 4

emits light at 655nm which is reflected back and hits sensors which reads the fluorescence that are produced by bacterial porphyrns. IT DOESNT MEAUSRE DEMINERALIZATION

Question 5

diagnodent readings

10-15, 15-30, 30+

Answer 5

no treatment, preventative treatment, surgical intervention.

Question 6

why are caries active dies not so great?

Answer 6

because theyre not specific for infected dentin. So they can give false positives

Question 7

interproximal lesions usually occur where?

Answer 7

just cervical to contact poiot

Question 8

what is paramount to the diagnosis of interproximal caries?

Answer 8

bitewings

Question 9

BWX can detect_______ but not ______

Answer 9

demineralization, lesion activity

Question 10

BWX classification 0,1,2,3,4

Answer 10

0- sound structure
1- radiolucency on enamel
2- radiolucency in enamel up to enamel dentine junction
3.- radiolucency in enamel an outer 1/2 of dentin
4.- radiolucency in enamel and reaching to inner half of dentine.

Question 11

a new way of diagnosing caries is via transmitted light. This mode is best for which caries?

Answer 11

interproximals

Question 12

whats FOTI and where can it be used?

Answer 12

fiberoptic transillumination. Very good aid for posterior teeth especially to locate cracks and failing restorations

Question 13

whats the CARIVu system?

Answer 13

uses near infrared light to turn natural tooth structure transparent and caries dardk, Costs 7000$

Question 14

what does ditching mean?

Answer 14

marginal breakdown or fracure of restorations