Brainscape's Knowledge GenomeTM

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


See full index

PROSTHODONTICS 2 LEC PRELIM > MODULE 6 > Flashcards

MODULE 6 Flashcards

1
Q

Recording medium (image receptor)
generally used in dental radiography

A

Radiographic film

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

invisible image

A

Latent image

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

Manifest image

A

visible image

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

General Procedure:

A

a. Immersion of exposed films in developer solution

b. Rinsing in running water

c. Immersion in fixing solution

d. Film washing

e. Drying and mounting for viewing

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

Main composition of processing
solution:

A
  1. Developing solution developer
  2. Fixing solution
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

compose of elon and
hydroquinone

A

Developing solution developer

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

sodium sulfite

A

preservative

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

maintain ph of
solution (ph 11). Sodium
bicarbonate, sodium hydroxide,
sodium metaborate and
tetraborate.

A

activator

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

potassium bromide. Anti-fog agent.

A

restrainer

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

sodium or ammonium thiosulfate

A

clearing agent

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

acetic acid

A

acidifier

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

sodium sulfite

A

preservative

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

aluminum potassium sulfate and
chromium potassium sulphate

A

hardener

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

Light proof (light-tight door or a
doorless maze)

well ventilated to supply fresh air
for the comfort of the individual
working in the area

A

DARKROOM

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

The ideal darkroom should contain the following equipment:

A
  • the safelight,
  • processing tank,
  • thermometer,
  • timer,
  • drying racks,
  • sink and adequate water supply.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Causes of Faulty Radiograph

A

I. Light radiographs

II. Dark radiographs

III. Insufficient contrast

IV. Film fog

V. Dark spots or lines on radiographs

VI. Light spots on radiograph

VII. Yellow or brown stains on
radiographs

VIII. Blurred radiographs

IX. Radiographs with partial images

17
Q

I. Light radiographs
Processing errors

A
  1. Underdevelopment

a. Temperature too low
b. Time too short
c. Inaccurate thermometer

  1. Depleted developer solution
  2. Diluted or contaminated developer
  3. Excessive fixation
18
Q

I. Light radiographs
Underdevelopment

A
  1. Insufficient mA
  2. Insufficient kVp
  3. Insufficient time
  4. Excessive film-source distance
  5. Film packet reversed in mouth
19
Q

II. Dark radiographs
A. Processing errors

A
  1. Overdevelopment
    a. Temperature too high
    b. Time too long
  2. Developer concentration too
    high
  3. Inadequate fixation
  4. Accidental exposure to light
  5. Improper safe Lighting
20
Q

II. Dark radiographs
B. Overexposure

A
  1. Excessive mA
  2. Excessive kVp
  3. Excessive time

4.Insufficient film-source
distance

21
Q

III. Insufficient contrast

A

A. Underdevelopment

B. Underexposure

C. Excessive kVp

D. Excessive film fog

22
Q

IV. Film fog
A. Improper safe lighting conditions

A
  1. Improper filter
  2. Excessive bulb wattage
  3. Inadequate distance between
    safelight and working surface
  4. Prolonged exposure of films to
    safelight
23
Q

IV. Film fog
B. Light leaks

A
  1. Cracked safelight filter
  2. Lights from doors, vents,
    etc.

C. Overdevelopment

D. Contaminated solutions

E. Deteriorated film
1. Stored at high temperature
2.Stored at high humidity
3. Exposed to irradiation
4. Outdated

24
Q

V. Dark spots or lines on radiographs

A

A. Fingerprint contamination

B. Black wrapping paper sticking to
film surface

C. Film in contact with tank or
another film during fixation

D. Film contaminated with
developer before processing

E. Excessive bending of films

25
Q

VI. Light spots on radiograph

A

A. Film contaminated with
fixer before processing

B. Film in contact with tank or
another film during development

26
Q

VII. Yellow or brown stains on
radiographs

A

A. Depleted developer

B. Depleted fixer

C. Insufficient washing

D. Contaminated solutions

27
Q

VIII. Blurred radiographs

A

A. Movement of Patient

B. Movement of x-ray tube
head

C. Double exposure

28
Q

IX. Radiographs with partial images

A

A. Top of film not immersed
in developing solutions

B. Misalignment of x-ray tube
head (cone cut)

PROSTHODONTICS 2 LEC PRELIM (12 decks)

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