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Preclinic > Radiographs > Flashcards

Radiographs Flashcards

1
Q

In order to establish a diagnosis and develop treatment decision, information is needed from the ______ examination, ______ examination, and _______ history

A
  • clinical
  • radiographic
  • patient
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2
Q

When examining teeth clinically a _____ _____ is used for caries examination

A

set sequence starting w/ #1 to #32

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3
Q

During a clinical exam an ______ is used as a tactile device to detect the presence of any _______ changes (eg catches or tug-back) in pits, fissures, and grooves of the teeth as well as break in the enamel of smooth surface lesions

A
  • explorer

- consistency

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4
Q

_______ ____ can be sued to dry teeth and remove debri in order to allow for a better visual examination

A

compressed air

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5
Q

______ is a way to detect caries on anterior teeth that involves passing light thru the tooth

A

trans-illumination

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6
Q

During trans-illumination healthy enamel allows the passage of light while ____ ____ does not

A

dental caries

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7
Q

Carious lesions appear as a _____ on a dental radiograph

A

radiolucency

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8
Q

A radiolucent structure permits the passage of the x-ray beam and appear ____ or ___ on a dental radiograph

A
  • dark

- black

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9
Q

The degree of radiolucency seen on a radiograph is det. by the _____ and _____ of destruction as a result of the caries process

A
  • extent

- severity

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10
Q

Caries is always _____ advanced clinically than what is seen on a radiograph

A

further

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11
Q

What is the radiograph of choice for examination of dental caries bc it shows the crowns of upper and lower teeth on the same film?

A

bite-wing

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12
Q

What type of radiograph can be used to detect inter-proximal caries?

A

periapical radiograph

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13
Q

What criteria must be met for a bite wing to be considered diagnostic for the eval. of dental caries?

A
  • exposure and processing
  • open contacts
  • occlusal plane (horizontally along midline)
  • premolar placement ( distal contacts of max and mand canines)
  • molar placement (centered over 2nd molar)
  • free of errors
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14
Q

Caries found on smooth surfaces btw 2 teeth is termed _______ caries

A

interproximal

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15
Q

Interproximal caries is seen at or just below (apical) to the _____ pt

A

contact

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16
Q

_____ caries is less that 1/2 the thickness of enamel

A

incipient

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17
Q

____ caries is greater than 1/2 thickness of enamel and does NOT involve the DEJ

A

moderate

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18
Q

____ caries involves enamel and the DEJ. Less than 1/2 distance to the pulp cavity

A

advanced

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19
Q

____ caries; dentin penetrated more than 1/2 the distance to the pulp cavity

A

severe caries

20
Q

Occlusal caries is caries that involves the ____ and ____ of the posterior teeth

A
  • pit

- fissures

21
Q

Occlusal caries is not seen on a radiograph until there is involvement of the _____

A

DEJ

22
Q

____ occlusal caries cannot be seen on a dental radiograph and is detected clinically w/ explorer

A

incipient

23
Q

____ occlusal caries extends into dentin and is seen as a very thin radiolucent line under the enamel

A

moderate

24
Q

_____ occlusal caries extends into dentin and is seen as a large radiolucency under the enamel of the occlusal surface

A

severe

25
Q

____ caries involves the buccal surface of the tooth and _____ caries involves the lingual tooth surface

A
  • buccal

- lingual

26
Q

Buccal or lingual caries appears as a small, _____ radiolucency and clinical exam in needed to determine location

A

circular

27
Q

_____ _____ involves the roots of teeth and involves the cementum and dentin just below cervical region of tooth. No involvement of enamel is seen

A

root caries

28
Q

Root surface caries is detected on exposed root surfaces as cupped out or crater shaped radiolucency just below the ____

A

CEJ

29
Q

Secondary or ____ caries occurs adj to pre-existing restoration bc of inadequate cavity prep, defective margins, ore incomplete removal of caries before placing restoration

A

recurrent

30
Q

On a radiograph recurrent caries appears as a radiolucency just ______

A

beneath a restoration (interproximal margins)

31
Q

_____ caries is advance and severe caries which affects numerous teeth in dentition (dec salivary flow or poor diet)

A

rampant

32
Q

_____ caries is rampant caries resulting from xerostomia caused by head and neck radiation therapy

A

radiation

33
Q

What are the techniques needed for evaluation of dental caries by interpretation of dental radiographs?

A
  • mounted in opaque film mounts
  • viewed in room w/ subdued lighting free of distractions
  • illuminator or view box
  • harsh light masked to reduce glare
  • pocket sized magnifying glass
  • viewed w/ patient present
34
Q

Bite wings must be free of ______ contacts caused by horizontal angulation

A

overlapped

- cannot determine if interproximal caries

35
Q

_____ ___, abrasion, ____ and cervical burnout may resemble dental caries on a radiograph

A

restorative materials

  • attrition
  • cervical burnout
36
Q

Both the clinical exam and interpretation of radiographs are mutually contributory aids in making the diagnosis of _______ ____

A

dental caries

37
Q

_______ _____ such as composites may appear as radiolucent and resemble dental caries but differ bc they have a well-defined, smooth outline

A

restorative materials

38
Q

______ or wearing away tooth structure from the friction of a foreign object such as a tooth brush. Appears as a well defined horizontal radiolucency along the cervical region of a tooth

A

abrasion

39
Q

____ or mechanical wearing down of teeth can be seen on the incisal or occlusal surfaces of teeth. When worn into dentin it appears as concavities that may resemble caries but clinical exam tells them apart

A

attrition

40
Q

______ _____ is a radiolucent artifact and appears as a collar or wedge shaped radiolucency on the mesial and distal root surfaces near the CEJ of tooth (seen bc diff densities of adj tissues)

A

Cervical burnout

41
Q

GV Black Classificatio of Carious lesions

A

Class I-VI

42
Q

Occlusal areas and buccal or lingual pits

A

Class I

43
Q

Posterior interproximal

A

Class II

44
Q

Anterior interproximal

A

Class III

45
Q

Anterior Interproximal including incisal corner

A

Class IV

46
Q

Cervical 1/3 at facial or lingual

A

Class V

47
Q

Cusp tip

A

Class VI

Preclinic (6 decks)

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