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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
How to remember caries progression
SAMI the fish is swimming to the pulp (from enamel to dentin to pulp)
26
How the caries triangles point
both apices of triangles point to the pulp
27
How the caries triangles point
both apices of triangles point to the pulp
28
linear line on a radiograph
probably a fracture, caries do not travel linearly
29
How you see occlusal caries
Cannot see radiographically until it enters the dentin
30
When you can see occlusal caries radiographically
Once it is advanced (in the dentin)
31
Shape of occlusal caries radiographically
diamond, forms a cone once it reaches the
32
Why occlusal caries (class one in pits and fissures) appears diamond shaped
follows enamel rods (diverging)
33
Buccal/lingual caries-how to see first
mostly clinically
34
appearance of B/L caries
well defined peripheral walls, like looking into a hole
35
What must be true for cervical/cemental caries
only when periodontum is compromised (bone loss)
36
Appearance of cementum/cervical caries
scooped out appearance, cementum is thin, ABOVE the level of the bone, saucer shaped
37
Most susceptible to cervical caries
elderly (periodontal loss)
38
If you do the Dew, the Dew will do you
don't drink 10 sodas a day, you will get cervical caries
39
Cervical Burnout vs caries
Can Extend BELOW level of bone, caries DOES NOT, also can be linear
40
What is cervical burnout? Where is it? How do you check it?
-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
Where interproximal caries is
at contact
42
When do you use SAMI
interproximal caries
43
idiopathic cervical resorption
resorption below the level of the bone
44
radiation caries
cancer patients, get xerostomia because salivary glands are affected, RAPID, appear the same as cervical caries
45
Sound tooth tissue/Caries Ratio
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
% decalcification needed to see caries radiographically
40%
47
Sound tooth tissue caries clinical appearance vs radiographic
clinical lesion is bigger than the radiographic lesion
48
Technical errors
overlapping, poor contrast, too light
49
too much kVp
overpenetration which causes peripheral burnout, appears as open contacts and miss incipient lesions
50
Mach band effect
see radiolucency where it is not?
51
floating teeth
from toothbrush abrasion
52
gold and amalgam
attenuate the x-ray beam
53
Flat tops and slight caries appearance
bruxism/attrition
54
Hypoplastic incisor
Turner's tooth
55
Requirements for Caries Formation
Suceptible host Microorganisms Appropriate substance (carbs/plaque)
56
Most common caries among early children
interproximal-they depend on their parents
57
Most common caries among elderly
cemental/cervical due to periodontal disease
58
masks occlusal caries (when are they visible)
surrounding tooth strucute- not visible until dentin is penetrated
59
lesions which are first visible (clinical or radiograph)
Clinical always
60
Restorations will have _________ defined typical C shape for class III restorations in ant teeth
more defined (not diffuse margins)

Foundations 2 Exam 1 (12 decks)

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