Brainscape's Knowledge GenomeTM

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


See full index

Dental Assisting > Classes 5&6 > Flashcards

Classes 5&6 Flashcards

1
Q

X-radiation was discovered by who?

A

Wilhelm Roentgen

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

Dental radiation ____ cause damage to all the living cells.

A

Can

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

The ____ is the inner core of an atom.

A

Nucleus

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

____ is when x-rays strike patients tissues.

A

Ionization

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

The longer the wavelength, the ____ its ability to penetrate matter.

A

Less

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

What type of radiation is given off when the primary beam comes into contact with the bones of the skull and the teeth?

A

Secondary

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

The maximum permissible whole body exposure per year for those people who are occupationally exposed to radiation is ____.

A

5.0 rem

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

Dental personnel should strive for an occupational dose of ____.

A

Zero

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

The acronym ALARA stands for what?

A

As low as reasonably achievable

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

____ is the exposure to radiation occuring over a long period.

A

Chronic exposure

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

Somatic effects of exposure to radiation DO NOT affect ____.

A

Future generations

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

To prevent radiation exposure to the reproductive cells, the ____ must be placed on all patients.

A

Lead apron

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

What should dental personnel wear to record any exposure to occupational radiation?

A

Film badge

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

Dental x-ray equipment must be monitored for ____ radiation

A

Leakage

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

Unless you are behind a lead barrier while exposing radiographs, you should never stand closer than ____ from the primary beam.

A

6 ft

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

If Children are unable to hold the x-ray film by themselves, you are ____ to hold it for them. A child may sit in a parents lap with a lead apron on.

A

Not

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

Even though dental x-ray machines may vary in size and appearance, they all have a _____, ____, and ____.

A

Tubehead, extension arm, control panel

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

The ___ is made of a metal called tungsten.

A

Cathode

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

The filter in x-ray machines is made from ____.

A

Aluminum

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

The collimator is made from ____.

A

Lead

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

PID stands for ____.

A

Position indicator devices

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

PIDs are available in which sizes?

A

8 inches, 12 inches, 16inches

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

On a radiograph film, a ____ image appears dark/black.

A

Radiolucent

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

Dental radiographs are owned by the ____.

A

Dentist

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

The sources of disease transmission during dental radiography are ____, ____, and ____.

A

Film packets, control panel, dental chair controls

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

Bite tabs used for bitewing radiographs must be ____ after each use.

A

Discarded

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

The ____ radiograph shows the images of the entire length of the tooth including the apex.

A

Periapical

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

The bitewing ____ may be positioned in either vertical or horizontal positions.

A

Film

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

The ____ the film speed, the less radiation needed for each exposure.

A

Faster

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

The ____ technique is the radiographic technique that produces the least amount of distortion to the image.

A

Paralleling

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

In the ____ technique the film is placed parallel to the long axis of the tooth.

A

Paralleling

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

The ___ devices can be used for both the paralleling and bisection of the angle technique.

A

Film-holding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

When exposing a mandibular canine the film is positioned _____, or ____.

A

Vertical, horizontal

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

A bitewing radiographic survey can include ____.

A

2(for kids) or 4 films.

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

The premolar periapical film should include the distal half of the canine and ____.

A

Both canines

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

Incorrect ____ angulation will result in closed contacts on the radiograph.

A

Horizontal

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

The “short cone” technique is the ____ technique.

A

Bisection of the angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

For patients with a shallow palate, a very short lingual freanum, or palatal tori, the ____ technique is often used.

A

Bisection of the angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

The timer and exposure controls should be set ____ the film is positioned in the patients mouth.

A

Before

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

After exposure, should EACH film be labeled with the patient’s name and the date?

A

No

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

____ solution may cause damage to the electrical connections of the radiographic equipment.

A

Disenfecting

42
Q

While exposing dental radiographs, the minimum PPE are ____.

A

Gloves and protective clothing

43
Q

How often should processing solutions be replenished?

A

Daily, usually after about 30 uses.

44
Q

You may not use just any red light for the darkroom. A ____ is required.

A

Safelight

45
Q

In most darkrooms, the ____ tank will be located on the left side.

A

Developer

46
Q

The final rinse for radiographs must be atleast ____ minutes.

A

20

47
Q

Advantages of automatic film processors are ____ and _____.

A

Time/temperature controlled, less space required

48
Q

What can cause white spots if splashed on radiographs during processing?

A

Fixer (fixing) solution

49
Q

What can cause black spots if splashed on radiographs during processing?

A

Developer solution

50
Q

What processing error can cause light images?

A

Underdevelopment

51
Q

Fogged film can be caused by ____.

A

Improper safe lighting, or using expired film

52
Q

An extroral film is available in which sizes?

A

5x7, 8x10, 10x12

53
Q

Intensifying screens are NOT used to increase the amount of radiation delivered to the patient.

A

True

54
Q

Which type of screen film requires the least amount of radiation?

A

Green sensitive

55
Q

Which type of imaging system records images directly onto a computer screen?

A

Digital imaging

56
Q

What type of radiology takes a 2 dimensional image of the entire mouth?

A

Panoramic

57
Q

____ is the type of imaging system that records images directly onto a computer screen.

A

Digital imaging

58
Q

A critical component in obtaining a quality panoramic radiograph is ____, qualified operator, and proper film processing.

A

Patient positioning

59
Q

____ is used to reproduce radiographic images. The film is placed over theoriginal x-ray and exposed to ultraviolet light to create an accurate copy.

A

X-rayduplicating film

60
Q

Does duplicating radiographs require the use of x- radiation?

A

No

61
Q

A ____is an invisible image on an exposed film or print that has not yet been made visible by developing.When photographic film is developed, the area that was exposed darkens and forms a visibleimage.

A

Latent image

62
Q

Examples of structures that appear radiopaque on radiographs are what?

A

Amalgam, bone, and enamel

63
Q

___ x-rays are used to track the development and placement of an entire arch of teeth in either the upper or lower jaw.

A

Occlusal

64
Q

____ x-raysare used to detect dental problems in the jaw and skull. There are several types of these x-rays.

A

Extraoral

65
Q

____x-rays show the whole tooth from the crown, to beyond the root where the tooth attaches into the jaw. They detect any unusual changes in the root and surrounding bone structures.

A

Periapical

66
Q

____ x-rays show details of the upper and lower teeth in one area of the mouth. They detect decay between teeth and changes in the thickness of bone.

A

Bitewing

67
Q

____ are the most common type of x-ray. There are several types of these x-rays that each show different aspects of teeth.

A

Intraoral x-rays

68
Q

____ x-raysshow the entire mouth area. This x-ray detects the position of fully emerged as well as emerging teeth, and can see impacted teeth.

A

Panoramic

69
Q

A dark radiographic image may have been caused by ____.

A

Overexposure, overdevelopment

70
Q

There are two main types of____ x-rays.

Intraoral: the x-ray film is inside the mouth Extraoral: the x-ray film is outside the mouth

A

Dental

71
Q

____ are damaging effects of radiation that can be passed onto future generations is _____.

A

Genetic effects

72
Q

____ are damaging effects of radiation seen in the individual who is exposed to radiation.

A

Somatic effects

73
Q

____ is a device containing photographic film which registers the wearer’s exposure to radiation.

A

Film badge

74
Q

If the tubehead drifts during exposure, should you ask the patient to stabilize it with their hand?

A

No

75
Q

The latent image is the image on the ___

A

Film before processing

76
Q

____ means making every reasonable effort to maintain exposures to ionizing radiation as far below the dose limit as practical.

A

ALARA

77
Q

Bitewing x-rays are usually taken during routine dental visits and can show ____ starting to develop between your teeth, and bone loss due to periodontal disease.

A

Cavities

78
Q

Periapical x-ray shows the entire length of each tooth, from ____ to ____.

A

Crown to root

79
Q

____ refers to that portion of processed radiograph which appears as light/white.

A

Radiopaque

80
Q

____ refers to the portion of a processed radiograph which appears dark/black.

A

Radiolucent

81
Q

On a radiograph film, a ____ image appears light/white.

A

Radiopaque

82
Q

____ are a form of energy that can penetrate matter.

A

X-rays

83
Q

Exposure to _____ can bring out changes in body chemicals, cells, tissues, and organs.

A

Radiation

84
Q

____ radiation exposure occurs when a large dose of radiation is absorbed in a short period of time.

A

Acute

85
Q

The _____ is a tightly sealed, heavy metal housing that contains the radiograph tube.

A

Tubehead

86
Q

The ____ is the heart of the x-ray generating system.

A

X-ray tube

87
Q

The ____ consists of a tungsten filament in a focusing cup made of glass and the purpose is to supply the electrons necessary to generate x-rays.

A

Cathode

88
Q

The ____ acts as the target for the electrons.

A

Anode

89
Q

The wire between the tubehead and the control panel is enclosed in the hollow ____. The arm also has an important function in positioning the tubehead. It folds up and can be swiveled from side to side.

A

Extension arm

90
Q

The ____ is located on a wall outside of the x-ray area to prevent radiation exposure to the operator while exposing the film.

A

Control panel

91
Q

The ____ contains the master switch, an indicator light, selector buttons, and an exposure button and the controls should be set BEFORE the film is positioned in the patient’s mouth.

A

Control panel

92
Q

The x-ray mcahine may be safely left on all day because it does not produce radiation unless the ____ button is being pushed.

A

Exposure

93
Q

Examples that appear radiolucent on a radiograph are what?

A

Air spaces, soft tissues, abscesses, tooth decay, and dental pulp

94
Q

Examples that may appear radiopaque on a radiograph are what?

A

Matel restorations, tooth enamel, and dense areas of bone

95
Q

____ is the overall blackness or darkness of a film.

A

Density

96
Q

On one corner of the film packet is a small raised bump known as the ____. The bump or dot is used to determine the left side from right side when placing the film.

A

Identification dot

97
Q

The premolar periapical film should include ____ and ____>

A

The distal half of the canine, both premolars

98
Q

The film is positioned in a ____ position when exposing a mandibular canine radiograph.

A

Vertical

99
Q

After exposure should EACH film be labeled with the patients name and date?

A

No

100
Q

Intensifying screens are NOT used to increase the amount of radiation delivered to a patient.

A

True

Dental Assisting (4 decks)

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