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Foundations 2 Exam 1 > Cariology and Radiology > Flashcards

Cariology and Radiology Flashcards

1
Q

must be visible in order to see incipient caries

A

interproximal spaces

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2
Q

BW

A

used to view crowns of both max and mand

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3
Q

used to view early periodontal bone loss

A

BW: should include alveolar crest b/c this is where bone loss starts

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4
Q

Full mouth series

A

14 PAs and 4 BW

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5
Q

best for viewing post caries

A

BW

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6
Q

what percent of post caries would be missed without BW

A

1/2

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7
Q

Acute caries

A

Rapid, common in deciduous teeth, tubules larger and less mineralized

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8
Q

chronic caries

A

in older patients, slow, large surface lesion, permanent teeth

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9
Q

larger surface lesion caries

A

chronic

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10
Q

arrested caries

A

Static, does so on own, leathery feeling, become self cleansing

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11
Q

Primary caries (origin)

A

originate on unrestored surfaces, “unrestored”

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12
Q

Secondary caries (origin)

A

Also called recurrent, in immediate vicinity of a previous restoration

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13
Q

Rampant caries

A

widespread, well progressed

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14
Q

Where can you see a secondary caries on a radiograph

A

“under the box”

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15
Q

Diagnosis of occlusal caries

A

clinically, can see

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16
Q

Interproximal caries types (2)

A

incipient and moderate

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17
Q

incipient caries penetrates

A

less than half way through enamel

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18
Q

incipient caries visible how

A

clinically as a white spot, V-shaped

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19
Q

Moderate interproximal caries

A

extends more than half way through the enamel but does not involve the DEJ

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20
Q

Shape of caries progression

A

Two triangles with wide base at enamel and wide base at dentin

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21
Q

Advanced interproximal caries

A

caries at or through the DEJ and extends no more than halfway through the dentin to the pulp, spreads along DEJ

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22
Q

Act as a tract for advanced interproximal caries bacteria to travel

A

dentinal tubules

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23
Q

Severe interproximal caries

A

of enamel and dentin MORE than halfway through the dentin towards the pulp

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24
Q

Appearance of caries on radiograph

A

radiolucent

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25
Q

How to remember caries progression

A

SAMI the fish is swimming to the pulp (from enamel to dentin to pulp)

26
Q

How the caries triangles point

A

both apices of triangles point to the pulp

27
Q

How the caries triangles point

A

both apices of triangles point to the pulp

28
Q

linear line on a radiograph

A

probably a fracture, caries do not travel linearly

29
Q

How you see occlusal caries

A

Cannot see radiographically until it enters the dentin

30
Q

When you can see occlusal caries radiographically

A

Once it is advanced (in the dentin)

31
Q

Shape of occlusal caries radiographically

A

diamond, forms a cone once it reaches the

32
Q

Why occlusal caries (class one in pits and fissures) appears diamond shaped

A

follows enamel rods (diverging)

33
Q

Buccal/lingual caries-how to see first

A

mostly clinically

34
Q

appearance of B/L caries

A

well defined peripheral walls, like looking into a hole

35
Q

What must be true for cervical/cemental caries

A

only when periodontum is compromised (bone loss)

36
Q

Appearance of cementum/cervical caries

A

scooped out appearance, cementum is thin, ABOVE the level of the bone, saucer shaped

37
Q

Most susceptible to cervical caries

A

elderly (periodontal loss)

38
Q

If you do the Dew, the Dew will do you

A

don’t drink 10 sodas a day, you will get cervical caries

39
Q

Cervical Burnout vs caries

A

Can Extend BELOW level of bone, caries DOES NOT, also can be linear

40
Q

What is cervical burnout?

Where is it?

How do you check it?

A

-Can extend BELOW the level of the bone and are more linear in appearance

-Radiolucent artifact (a structure or appearance not normally present on the radiograph and is produced
by artificial means) caused by changes in density and shape of the tooth at the cervical margin

  • Can check against another BW or PA and whatever created the artifact in one view may not be there in
    another view
41
Q

Where interproximal caries is

A

at contact

42
Q

When do you use SAMI

A

interproximal caries

43
Q

idiopathic cervical resorption

A

resorption below the level of the bone

44
Q

radiation caries

A

cancer patients, get xerostomia because salivary glands are affected, RAPID, appear the same as cervical caries

45
Q

Sound tooth tissue/Caries Ratio

A

advanced lesion, appears on outside and inside, but tooth is thicker between the two triangles so the photons do not transmit. The normal tooth between does not appear radiolucent

46
Q

% decalcification needed to see caries radiographically

A

40%

47
Q

Sound tooth tissue caries clinical appearance vs radiographic

A

clinical lesion is bigger than the radiographic lesion

48
Q

Technical errors

A

overlapping, poor contrast, too light

49
Q

too much kVp

A

overpenetration which causes peripheral burnout, appears as open contacts and miss incipient lesions

50
Q

Mach band effect

A

see radiolucency where it is not?

51
Q

floating teeth

A

from toothbrush abrasion

52
Q

gold and amalgam

A

attenuate the x-ray beam

53
Q

Flat tops and slight caries appearance

A

bruxism/attrition

54
Q

Hypoplastic incisor

A

Turner’s tooth

55
Q

Requirements for Caries Formation

A

Suceptible host
Microorganisms
Appropriate substance (carbs/plaque)

56
Q

Most common caries among early children

A

interproximal-they depend on their parents

57
Q

Most common caries among elderly

A

cemental/cervical due to periodontal disease

58
Q

masks occlusal caries (when are they visible)

A

surrounding tooth strucute- not visible until dentin is penetrated

59
Q

lesions which are first visible (clinical or radiograph)

A

Clinical always

60
Q

Restorations will have _________ defined typical C shape for class III restorations in ant teeth

A

more defined (not diffuse margins)

Foundations 2 Exam 1 (12 decks)

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