Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

oral radiology > perio dx interpretation > Flashcards

perio dx interpretation Flashcards

1
Q

Periodontal Disease def

A

Destructive inflammatory disease affecting supporting structures of the teeth

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

forms of perio dx

A

❑Gingivitis: only the soft tissues are involved
❑Periodontitis: soft tissues and supporting bone affected

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

progression of perio dx

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

Major cause of tooth loss in
patients > 35 years

A

perio dx

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

Severity of perio disease increases with

A

*Age
*Amount of plaque
*Amount of bacterial micro-flora

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

Periodontal Disease
Predisposing Factors

A

A) Plaque retention
B) Salivary Immune Factors
C) Cell mediated hypersensitivity in crevicular plaque
D) Local dental factors
- poor restorations, Calculus (tartar), Tilted/rotated tooth= plaque traps
- Thin bone more sus to destruction

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

Periodontal disease
Clinical Signs

A
  • Edema, erythema of the tissues
  • Loss of epithelial attachment to
    tooth surface and pocket formation
  • Bleeding on probing
  • Purulence
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Radiographic Examination of perio dx bone

A

–quantity; relative to root length
- quantity; crestal evaluation
- quality
- furcation involvment as plaque trap
- PDL space

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

forms of alveolar bone loss

A
  • GENERALIZED
  • LOCALIZED
  • HORIZONTAL
  • VERTICAL
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

generalized vs localized bone loss

A

Generalized: > 75 % of existing dentition
Localized: Specify locations i.e. #7-D,
#30-M,D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Radiographic Examination aspects of Roots in perio dx

A
  • length
  • shape –conical, diverging, curves,
    dilaceration, etc…
  • crown:root ratio
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

if roots are in close proximity what is the effect?

A

thinner bone btwn them: more sus to destruction

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

coverging/diverging roots and effects

A

converging roots are nt as supported whereas the diverging roots are more supported

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

Radiographic examination of
ROOT ANATOMY factors

A
  • Length
  • Atypical multiple roots
  • Proximity to adjacent roots
  • Shape (Conical, Curves (accentuated or “S”), Dilaceration, Diverging vs. converging, Hypercementosis)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Dilaceration
causes?

A
  • Abnormal angulation or bend in the root (and occasionally the crown) of a tooth
  • Some related to trauma during odontogenesis
  • idiopathic
  • can increase perio support of tooth
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

root?

A

dilaceration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q
A

dilaceration

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

local predisposing factors of perio dx

A
  • restorations
  • calculus
  • tilted rotated teeth: ie, uneven marginal
    ridges
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q
A

calculus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

how can we best demonstrate calculus

A

demonstrate best with “bright” densities (lighten the image)

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

Radiographic Changes in
Periodontal Disease

A
    1. Horizontal Bone Loss
    1. Vertical Bone Loss
    1. Furcation Involvement
    1. Large crown:root Ratio
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Definition of Horizontal Bone Loss:

A

Even/uniform apical movement of the alveolar crestal bone height along adjacent root surfaces between affected tooth/teeth
SLOW ADVANCING FRONT

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

around tooth?

A

follicular space

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

what is the follicular space significance

A

this is where the bone will attatch to the tooth establishing horizontal level
always apical to the CEJ (1.3-1.5mm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
around teeth
follicular space
26
Posterior Dentition in Health - shape/crest? - physiologic bone height?
- flat (plateau), corticated crest - physiologic bone height is <2.0mm from CEJs
27
Anterior Dentition in Health shape/crest? bone height?
- pointed, corticated crest - physiologic height is <2.0mm from CEJs
28
health?
healthy?
29
healthy?
yes
30
Radiographic Description of Periodontal Bone Loss classes
* 1. Incipient bone loss –slight crestal bone loss of < 1.0 –2.0mm, but less than 20% * 2. Moderate bone loss –evidence of ~20% up to 50% bone loss * 3. Advanced bone loss –evidence of 50% or more of bone loss; evidence of vertical defects
31
Incipient bone loss - shape/crest? - bone level to physiologic height? - mm?, but less than %?
- blunted, non-corticated crest - bone level is apical to physiologic height - < 1.0 – 2.0mm, but less than 20%
32
bone loss?
incipient bone loss
33
Moderate Bone Loss - shape of crest - prominent loss of?
blunted, non-corticated crest - prominent loss of alveolar bone height
34
bone loss?
moderate bone loss
35
Moderate vs. Advanced Bone Loss -shape of crest - prominent loss of?
- blunted, non-corticated crest - prominent loss of alveolar bone height
36
Advanced (severe)Bone Loss -shape of crest - prominent loss of? %? evidence of what defects? - crown:root ratio ?
- prominent loss of alveolar bone height; evidence of 50% or more of bone loss; evidence of vertical defects - crown:root ratio > 1:2
37
bone?
advanced bone loss
38
bone loss
advanced
39
is this bone loss?
no WNL
40
initial changes of perio dx in posterior
Loss of cortication but minimal loss of height
41
what is happening?
loss of cortication and height of bone
42
Definition of Vertical Bone Loss:
Angular bone loss along a root that more severely involves the affected tooth/teeth than the adjacent teeth
43
what is happening at the mesial
vertical bone loss
44
what bony defect is this?
vertical bone defect
45
RADIOGRAPHIC EXAMINATION OF FURCATIONS loss of? can occur with?
* Loss of bone in the furcation area of a multi-rooted tooth * Can occur with HBL and VBL
46
what is happening at the molar?
furcation involvement with HBL/VBL (M)
47
furcation involvemwnt with VBL
48
Crown:Root Ratio * Defined as? * gives an indication of? * poor prognosis with?
* Defined as: Length of radiographic crown Length of radiographic root * An index expressed as a ratio that givesan indication of a tooth’s prognosis * A ratio of more than (>) 1:2 has a poor prognosis
49
radiographic crown
all of the crown above the alveolar crest
50
radiographic root
root below the alveolar crest
51
Radiographic examination limitations * Accuracy requires what % demin? * 2-D Infra-bony defects? * Soft-tissue? * No Information on? * Difficult to assess disease where? * Mobility?
* Accuracy 40 - 50% demineralization necessary for radiographic changes * 2-D Infra-bony defects difficult to observe * Soft-tissue Changes edema, color, plaque * No Information on relationship of soft tissue to hard tissue i.e., pocketing * Difficult to assess disease on B and Li bone plates adjacent B and Li tooth surfaces * Mobility
52
Periodontal Disease Treatment
* 1. Plaque control * 2. Antimicrobial agents – Topical – systemic * 3.Professional Cleaning, scaling, root planning, curretage * 4.Surgical techniques to re-establish physiologic contours
53
which is moderate loss? which is advanced?
L: moderate R: advanced
54
what is the follicular space significance
this is where the bone will attatch to the tooth establishing horizontal level always apical to the CEJ (1.3-1.5mm)
55
how can an alveolar crest that is angled be healthy?
this can be angled so long as it is parallel to a plane formed by adjecent teeth CEJ
56
what anatomical strucutre becomes more prevalent with chronic bone loss?
nutrient canals
57
nutrient canals
58
loss of cortication
59
loss of cortication with horizontal bone loss
60
loss of cortication
61
what bone loss is present
horizontal but some veritcal at the 1st molar
62
H or V?
both are occuring
63
how are furcations involved with HBL/VBL
when these become involved with bone loss they can worsen the effects by acting as plaque traps
64
crown root ratio
2:1, bad prognosis
65
crown to root ratio
1:0 (infinity), bad prognosis
66
Crown root ratio
approx 6:1, bad

oral radiology (22 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions