Brainscape's Knowledge GenomeTM

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


See full index

Endodontics > Lecture 6 (9/26) > Flashcards

Lecture 6 (9/26) Flashcards

1
Q

Traditional radiography we are looking at a _____ dimensional picture for a ______ dimensional situation

A

2D; 3D

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

A CBCT will show you a _______ image

A

3D

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

A static 2-dimensional shadow of a dynamic 3-dimensional situation

A

Traditional radiograph

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

Type of image that is a “snapshot in time”:

A

Radiograph

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

Ideally if we are going to do endodontic therapy we want a radiograph that is:

A

Exposed the day of treatment (although not 100% necessary)

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

Because a radiograph is only a 2D image, it is subject to:

A

Distortions and false interpretations

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

As long as there is no periaplical lesions we need to see _____mm of bone beyond the apex

If there is a periapical lesion we need to see:

A

2-3mm; all of the lesion

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

If the radiograph does not appear right, you should consider:

A

a better angulation

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

________ to the area of concern are paramount in helping to determine a correct diagnosis

A

Optimization of image quality and relationship

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Optimization of image quality and relationship to the area of concern are paramount in helping to determine a correct:

A

Diagnosis

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

If your radiograph was taken before the patient had symptoms you should:

A

take a new radiograph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

If your radiograph was taken before the patient had some operative work done you should:

A

take a new radiograph

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

old radiographs can be very useful, such as:

A

Viewing changes that occur

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

Diagnostic radiograph must be _____ and include all of the ares of concern in proper orientation without cone cuts, overlapping, elongation or foreshortening.

A

Distinct

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

Diagnostic radiographs must be distinct and include:

A

All of the areas of concerns in proper orientation

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

What diagnostic radiographs are required for all posterior teeth?

A

2 PA radiographs (straight-on & 20 degree H. angled)

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

When taking a diagnostic radiograph, its always a good ideal to take _____ to help _____

A

multiple angles; guess the 3D anatomy

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

Are your radiographs current? Think of all the ____ of a ____ pulpal-periodontal environment to a _____ state. You swill see most of these changes.

A

stages; healthy; diseased

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

What does a 5-year old sloppy x-ray tell you?

A

To take current radiographs

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

A current radiograph

A

1-2 months; Unless something has changed

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

NEVER EVER EVER try to make a diagnosis:

A

from 1 radiograph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The radiograph is a _____ that helps us arrive at a _____. But it is not _____.

A

Tool, diagnosis; NOT THE ONLY TOOL

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

A drop-off perio pocket or a DST could indicate:

A

a new vertical root frature

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

A new vertical root fracture could be indicated by:

A

a drop-off perio pocket or DST

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

Do radiographs have historical value?

A

Yes- allows you to visualize change over time

26
Q

A series of radiographs over time with similar angulation and exposure can be very helpful when following:

A

a new developing lesion or healing lesion

27
Q

Benefits of endodontic radiology include: (4)

A
  1. Suggest LEOs & other pathosis
  2. May indicate unseen canals & proximal anatomy
  3. Largely locates most curvatures
  4. Assists in working-length determination
28
Q

When you see a canal “disappear on a radiograph” this shows us:

A

The canal splits at that point and becomes two canals (AKA a fast break)

29
Q

When you look at lower first premolars 24% of the time you will see a _____ canal system and this indicates this is likely _______

(Double check this info)

A

Type IV (canal disappears I think); a case you need to refer

30
Q

Mesio-distal curvatures are _____ to see
Buccal-lingual curvatures are _____ to see

(on radiographic images)

A

Easy; harder

31
Q

Bullseye suggest that:

A

The root takes a 90 degree curve- very difficult to treat these cases! REFER REFER REFER

32
Q

If a canal disappears this may be called a ____ meaning the canal has ____.

This is significant for ____

You probably want to ___ these cases

A

Fast break; split; lower first premolars; refer

33
Q

Benefits of endodontic radiology:

Suggests ____ and other _____

A

LEOs and other pathosis

34
Q

We want our working length and obturation to be _____ short, where the canal exits the root

A

1mm

35
Q

Benefits of endodontic radiology:

May indicate ___ and _____

A

Unseen canals and proximal anatomy

36
Q

Benefits of endodontic radiology:

Largely locates most:

A

Curvatures

37
Q

Benefits of endodontic radiology:

Assists in ______ determination

A

working-length

38
Q

Changes of horizontal angulation = _____

A

“SLOB” rule

39
Q

Modern diagnostic Digital radiographs is _____ when appropriate radiation hygiene techniques are employed

A

without risk

40
Q

The lingual canal will move the _____ direction as the shift shot.

The buccal canal is going to appear to move the ______ direction of the shift shot.

A

Same; Opposite

(line up pointer fingers - one infront of the other infront of face, if you move you head to the left/right, it appears the finger in the back is moving in the same direction as your head- this represents the lingual-palatal root)

41
Q

There should be _____ about x-ray safety for adequate diagnostic/TX purposes

A

No question

42
Q

Radiographs helps to develop a:

A

Mental image

43
Q

Risks of endodontic radiology:

Many opportunities exist for ____ and ____

A

Confusion; inaccurate interpretation

44
Q

Risks of endodontic radiology:

Results can be ____ leading to ____

A

Inaccurate diagnosis; incorrect treatment

45
Q

A risk of endodontic radiology is that results can be inaccurate leading to incorrect treatment, because of this, its extremely important to:

A

Avoid making diagnose solely off radiograph

46
Q

A risk of endodontic radiology is that results can be inaccurate leading to incorrect treatment, because of this, its extremely important to evaluate for: (3)

A
  1. artifacts
  2. poor resolution
  3. wrong angle
47
Q

What are the three biggest risks of endodontic radiology?

A
  1. attempting to diagnose from radiographs alone
  2. seeing something on film that is not there
  3. failing to see something on the film that is there
48
Q

Unless you like spending time and money in court: (its a saying)

A

Errors of commission = errors of omission

49
Q

______ curvatures are more easily noticed than ______

A

Mesio-distal; buco-lingual

50
Q

When you see a _____ on an image, you are seeing facial or lingual root tip “on end”. You don’t know if it curves to the facial or lingual (good opportunity to refer)

A

Bullseye

51
Q

When you see a bullseye, you are seeing a ___ or ____ ____; you don’t know if it curves to the _____ or _____

A

Facial or lingual root tip; facial or lingual

52
Q

When you see a bullseye on an image, its a good idea to:

A

Refer

53
Q

This image shows an example of:

A

Bullseye

54
Q

This 4th (disto-lingual) root is seen most frequently in ______ and ______ populations

A

Native American; asian

55
Q

What kind of root is seen most frequently in Native American and asian populations?

A

4th disto-lingual root

56
Q

Often the disto-lingual root and canal curve sharply to the _____ to present this classic appearance

A

facial

57
Q

The 4th (disto-lingual) root is seen most frequently in Native American and asian populations. Often the D-L root and canal curve sharply to the facial to present this classic appearance.

This information can be of great value to the operator in being able to _______ to ______

A

visualize the unusual anatomy; avoid misadventures

58
Q

A distal shift shot on #30 will make the ML root appear to move:

A

Distal to the MB root

59
Q

Which of the following is not necessary for quality diagnostic routine endodontic films?

A

Panorex

(ALL posterior teeth require 2 P/A radiographs straight on and 20 degrees horizontal angle & a BW)

60
Q
A

Endodontics (17 decks)

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