Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

23 Radiology > 11 - Periodontal Diseases > Flashcards

11 - Periodontal Diseases Flashcards

1
Q

what is heterogenous collection of diseases affecting periodontium

A

periodontal disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is perio disease characterized by

A

inflammatory host response in periodontal tissues

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

resulting changes in perio disease may present how?

A

localized or generalized

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

in ___, resulting changes may be localized or generalized alterations in supporting bone and soft tissues around the teeth - ultimately loss of teeth

A

periodontal diseases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what is the disease pathway for perio disease

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

where does perio inflammatory destruction begin

A

gingival sulcus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

where is bone loss in perio disease? what widens

A

loss of bone at alveolar crest and widening of periodontal ligament space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

is perio purely horizontal or vertical bone loss?

A

combo of both

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

how is periodontal disease assessed

A
  1. Clinical examination is completed first
  2. Radiologic images are an adjunct
  3. Prescription of radiographic images are
    indicated when the clinical examination
    suggests periodontitis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what do you look for in radiographic assessment of periodontal conditions

A
  1. Amount of bone present
  2. Condition of alveolar crests
  3. Bone loss in the furcation areas
  4. Width of periodontal ligament space
  5. Local irritation factors that increase the risk of periodontal diseases (calculus, poorly contoured or overextended restorations, open interproximal contacts)
  6. Missing, supernumerary, impacted, and tipped teeth
  7. Root length and morphology and crown-to-root ratio
  8. Root Resorption
  9. Caries
  10. Periapical lesions
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what are imaging modalities for perio disease

A
  1. intraoral imaging
  2. pano imaging
  3. CBCT
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

___ images should be considered the primary imaging
choice for characterizing periodontal diseases

A

Bitewing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what Accurately depict the distance between the CEJ and crest of
interradicular alveolar process

A

bW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what helps evaluate percentage of root affected by bone loss

A

PA imaging

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

T/F: in BW imaging, plane of the image receptor is parallel to long axis of tooth and X-ray beam is directed perpendicular to long axis of tooth

A

TRUE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

the teeth are depicted in their correct position relative to alveolar process when:

A
  1. No overlapping of the interproximal contacts between the tooth
    crowns
  2. No overlapping of the roots of adjacent teeth
  3. Buccal and lingual cusps of the molars are superimposed over one
    another
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

who gets VERTICAL BW

A

In patients with moderate to severe clinical attachment
loss, horizontal bite wings may not depict alveolar crest
loss

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

how is vertical BW oriented

A

The receptor is reoriented at 90 degrees; same size 2
image receptors are used; oriented such that the long axis
of the receptor is in a vertical orientation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

limintations of intraoral images

A
  1. 2 dimensional repregentatio of three dimensional anatomical structures (Where objects superimpose (maxillary molar root furcation, buccal lingual cortical plates) bone loss often not seen)
  2. 2D usually underestimate bone loss
  3. No soft tissue changes are seen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what xray

Relatively quick and easy to acquire
Provide an overview of teeth and jaws in a single image

A

pano

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

limitationons of pano

A
  1. 2 dimensional representation of three dimensional anatomical structures
  2. Superimpositions and distortion and lower resolution, especially in the anterior areas of jaws
  3. Discouraged to use it as a primary imaging tool for periodontal disease
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what xray

Ability to 3D visualize oageous supporting structures of teeth from any angle
No anatomical superimposttion
Allows better visualization of periodontal defects
Complex vertical defects, craters, furcation, buccal and lingualcortical plate loss

A

CBCT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

limitations of CBCT

A

Imaging artifacts by metallic restorations
Low contrast resolution than intraoral radiographs
Current evidence doed not slipcort the routine use of CBCT for imaging of the periodontium
Especially when cost and radiation dose is considered

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Thin layer of ___ often overlies the crest
of the alveolar process

A

radiopaque cortical bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Height of crest lies at a level that is approx. ___ mm apical
to the levels of the CEJs of adjacent teeth

A

0.5 to 2.0 mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Between posterior teeth, alveolar crest is oriented [parallel or perpendicular] to an imaginary line connecting adjacent CEJs

A

parallel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Between anterior teeth, the alveolar crest is a [line OR point] between the teeth that may have a well-defined cortex

A

point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

alveolar crest should be continuous with what part of adjacent teeth

A

lamina dura

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

should the junction between lamina dura and alveolar crest be a SHARP or BLUNT angle

A

sharp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

should PDL space be thick or thin

A

THIN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

prominent vascular canals in xray are ofetn associated with what

A

perio disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

what are imaging features of perio disease

A
  1. Changes in morphology of the supporting bone - Loss in interproximal crestal bone and bone overlying buccal and lingual surfaces
  2. Changes to the trabecular density and pattern - Reduction or increase in bone trabeculation or both
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

what are early changes of alveolar process morphology

A

localized erosion of interproximal alveolar crest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

what does anterior and posterior region look like in early changes of alveolar process

A

Anterior region: blunting of crest and slight loss of height
Posterior region: Loss of normal acute angle between lamina dura and alveolar crest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

how can alveolar process defects be described

A

Horizontal or vertical in nature
Inter dental craters and furcation defects
Loss of buccal or lingual cortical plates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

what type of bone loss

A

horizontal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

what type of bone loss

A

vertical

38
Q

what bone loss:

Loss of alveolar bone where the crest is still horizontal (crest more apical than 0.5-2 mm) - parallel to the line joining CEJ

A

horizontal bone loss

39
Q

when CEJ of adjacent teeth are at diferent horizontal levels, what can the alveolar crest look like

A

may have an ANGLED appearance

40
Q

crest distance for normal, minimal, moderate, and severe loss

A

normal: 0.5-2mm
minimal: 2-4 mm
moderate: 4-6 mm
severe: >6 mm

41
Q

what bone loss:

Appearance of bone losd that is localized at one or both root surfaces of a single tooth
An individual may have multiple osseous defects

A

vertical bone loss

42
Q

what is vertical bone loss associated with

A

late stages of periodontitis

43
Q

what bone loss:

Radiographically, outline of the remaining alveolar process
typically displays an angulation that is oblique to the
imaginary line connecting the CEJ

A

vertical bone loss

44
Q

what are two walled trough-like depression that develops in the crest of alveolar process between adjacent teeth

A

interdental craters

45
Q

what causes interdental craters

A

cancellous bone between buccal and lingual plates is resorbed

46
Q

what feature:

Radiographically, it appear as a band-like or irregular region of bone with less density at crest, immediately adjacent to more dense normal bone apical to base of crater

A

interdental craters

47
Q

are interdental craters more common in anterior or posterior region

A

posterior

48
Q

what is this

A

interproximal craters

49
Q

how to determine if buccal or lingual defect

A

use SLOB rule

50
Q

progressive periodontal disease and associated bone loss may extend where

A

to furcation of multirooted teeth

51
Q

what is strong evidence of furcation involvement in radiograph

A

widening of PDL space at the apex of interradicular bony crest

52
Q

what is visible with a mandibular molar furcation

A

if sufficient loss of bone on lingual or buccal surface, radiolucent image of furcation becomes prominent

53
Q

what is visible on maxillary molar furcation

A

not as sharply defined because palatal root is superimposed over defect (inverted J-shape R/L hook of J extends into trifurcation)

54
Q

what is this

A

furcation bone loss

55
Q

definitive diagnosis of complex furcation deformities requires what

A

careful clinical examination and sometimes surgical exploration

56
Q

what is an important tool to identify potential involved sites of osseous deformaties in furcations

A

intraoral images

57
Q

is perio disease capable of stimulating a reaction in adjacent surrounding bone

A

yesssir

58
Q

what opacity reflects the loss of density and number of trabeculae

A

radiolucent change

59
Q

what opacity changes due to the deposition of bone on existing trabeculae

A

radiopaque change

60
Q

when there are changes in internal densities and trabecular pattern, does surrounding bone reaction usually have a mixture of bone loss and sclerosis

A

YES

61
Q

what happened to the bone

A

resorption with no new bone

62
Q

what happened to the bone

A

loss of upper alveolar bone but extensive diffuse sclerosis below

63
Q

what can cause the widening of PDL, thickening of lamina dura, bone loss, and increase in number and size of trabeculae

A

occlusal trauma

64
Q

what does the widening of PDL cause

A

tooth mobility

65
Q

what does calculus and plaque formation and defective formation cause

A

local irritaitng factors

66
Q

what is rapidly progressing, destructive lesion that usually originates in the deep soft tissue perio pocket

A

perioontal absecess

67
Q

what results from occlusion of the coronal portion of perio pocket or lodging of foreign material between tooth and gingiva

A

perio abscess

68
Q

what does perio abscess lesion look like if ACUTE

A

no radiographic change

69
Q

what does perio abscess lesion look like if PERSISTENT

A

radiolucent region appears; may be a focal, round area of R/L with loss of lamina dura of involved root surface

70
Q

what are the arrows

A
71
Q

where do you most commonly see calc

A

mand incisors

72
Q

what may be localized to any surface or generalized throughout the mouth

A

calculus

73
Q
A

calccccy

74
Q

T/F: Overhanging or poorly contoured margins can also lead to accumulation of plaque, where periodontal disease may develop.

A

TRUE

75
Q
A

margin overhang ultimately causing perio problemas

76
Q

what is deep angular bone defect extending to tooth apex communicating with PA rarefying osteitis

A

endo-perio lesions

77
Q

what defect may slightly widen at alveolar crest creating FUNNEL LIKE SHAPE

A

endo-perio lesions

78
Q

post perio therapy, do xrays ALWAYS show signs of sucessful tx

A

NO! occassionally does

79
Q

what are indicators of stabile perio disease in radiograph? is this seen in all patients?

A

Reestablishment of interpro ciral crestal cortex and the sharp line angle between cortex and lamina dura are good indicators of stabilization of disease.

These signs are not seen in all patients.

80
Q

is perio disease healing best assessed clincially or thru radiograph

A

CLINICAL HEALING

81
Q

what does this show

A

after successful perio tx, a corticated alveolar crest is formed

82
Q

what are differental perio diagnoses

A
  1. malignant neoplasms
  2. LCH
83
Q

what is this:

Extensive bone desiruction of a localized area beyond periodontium
Invasive characteristics
Irregular widening of PDL space
Ragged or regular periphery and destruction of lamina dura

A

malignant neoplasm

84
Q

what problem

A

squamous cell carcinoma

85
Q

what problem

A

Langerhans’ cell histiocytosis (epicenter at middle of root instead of crest)

86
Q

does LCH occur in single or multiple regions of bone around roots of tooth

A

BOTH! could be in single or multiple regions

87
Q

what is appearance of teeth floating in air that are similar to severe periodonttitis

A

LCH

88
Q

where is the epicenter of bone destruction in LCH

A

midroot level (not crest)

89
Q

does 2D imaging show all bone loss

A

NO

90
Q

T/F: it is very important to combine clinical and radiographic findings

A

TRUE

91
Q

T/F: compare changes over time to determine activity

A

true

92
Q

T/f: one set of images gives a history of all changes but not recent changes

A

true

23 Radiology (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions