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Question 1

Radiation protection for the patient would include

Answer 1

Use of a lead of apron

Question 2

What is the negatively charged particle that is responsible for producing dental radiographs?

Answer 2

Electron

Question 3

Radiation is considered harmful because it is

Answer 3

Cumulative

Question 4

Interproximal or cavity detecting radiographs are

Answer 4

BWX

Question 5

Weak radiation leaving the tube during exposure is prevented by use of an

Answer 5

Aluminum filter

Question 6

Use of faster speed X-ray film would help to protect the patient from exposure by allowing the operator to ___________ the exposure time

Answer 6

Decrease

Question 7

A full mouth x ray survey includes

Answer 7

18 films (14 PAs and 4 BWX)

Question 8

The beam of radiation which is responsible for exposing the X-ray film is the

Answer 8

Primary/direct radiation

Question 9

The amount of electrons needed to produce a diagnostic film is referred to as

Answer 9

Milliamperes

Question 10

What is the occupational dose limits for radiation exposure in a calendar quarter

Answer 10

1.25 rems

Question 11

A full mouth X-ray survey on an edentulous patient consists of:

Answer 11

14 PAs only

Question 12

The cathode is the

Answer 12

Negative terminal

Question 13

The degree of thickness of an object which affects the overall degree of darkening of an exposed film is referred to as

Answer 13

Density

Question 14

Besides gamma rays what additional radiation wave from the EMR spectrum is considered harmful to tissue due to its wavelength

Answer 14

Ultra violet

Question 15

An ion is

Answer 15

An atom that has lost an electron

Question 16

The part of the X-ray machine that produces the radiation is

Answer 16

The vacuum tube

Question 17

What is the standard film size

Answer 17

Size 2

Question 18

Reasons for taking X-rays on an edentulous patient include

Answer 18

Insurance verification

Checking bone level

To ensure all teeth and roots have been removed

Question 19

What is true of radiation monitoring badges?

Answer 19

Badges should be worn at waist level when exposing X-ray receptors

Question 20

The amount of radiation exposure an individual receives varies on

Answer 20

Film speed

Question 21

The speed of electrons through a circuit is referred to as

Answer 21

Kilovoltage

Question 22

What item of the X-ray unit restricts the radiation beam to 2.75” at the end of the cone?

Answer 22

A collimator

Question 23

The following films are used to examine the crowns of both maxillary and mandibular teeth on one film

Answer 23

Bite wing

Question 24

Radiation injuries that are not seen in the person irradiated but that occur in future generations are termed

Answer 24

Genetic effects

Question 25

Which of the following are considered radiation protection for the operator during patient exposure

Answer 25

Distance of 6-8 feet away from primary beam

Question 26

Which of the following describes the use of a filter in a dental tube head?

Answer 26

A filter removes low energy X-rays

Question 27

The value of radiographs for patient education could include

Answer 27

Results of missing teeth Implants/bridges from restored mouth Orthodontic conditions

Question 28

Which of the following is an intra oral film Panorex Occlusal Cephalometric Orthopantomograph

Answer 28

Occlusal

Question 29

What type of radiation can be controlled and eliminated

Answer 29

Leakage radiation

Question 30

Traditional unit for measuring X-ray exposure in air is termed a

Answer 30

Coulombs per kilogram

Question 31

Purpose of lead foil inside film packet

Answer 31

Prevent secondary radiation from fogging film

Question 32

The material responsible for giving support and stiffness to the X-ray film is called

Answer 32

Cellulose acetate

Question 33

Reticulation on a film is a processing error caused by excessive

Answer 33

Heat

Question 34

How does the temperature of the processing solutions affect the X-ray film

Answer 34

Causes the films to develop slower or faster

Question 35

The identification dot on the intramural film is significant because

Answer 35

The dot indicates the patient’s right or left The dot determines film orientation The dot is important in film mounting

Question 36

The purpose of the fixer is to

Answer 36

Stop the action of the developer

Question 37

Distortion

Answer 37

Changes in the shape or size

Question 38

Radiolucent

Answer 38

Degree of darkness on a film

Question 39

Density

Answer 39

Thickness of an object

Question 40

Contrast

Answer 40

Different between black white & grey

Question 41

Radiopaque

Answer 41

Shows white on a film

Question 42

After removing an exposed film from the patient’s mouth the first thing you should do is

Answer 42

Wipe off the saliva from the film

Question 43

The instrument from the XCP kit that allows the operator to align the PID at a right angle to the film and long axis of the tooth is the

Answer 43

Metal indicator rod

Question 44

How often should the processing tank be cleaned

Answer 44

Once per week

Question 45

The minimum allowable distance of the dark room safety light from the working counter top is

Answer 45

4 feet

Question 46

Incorrect vertical angle of the PID causes

Answer 46

Elongation

Question 47

Any leaks of white light into the darkroom will cause

Answer 47

Film fogging

Question 48

Dental receptors Placed inside the mouth are termed

Answer 48

Intra-oral

Question 49

An incorrect horizontal angle of the PID causes

Answer 49

Overlapping

Question 50

What causes a cone cut

Answer 50

Not aligning the center of the cone to the center of the film

Question 51

The following substance found in the emulsion of a film is responsible for an X-ray image

Answer 51

Silver halide crystals

Question 52

Foreshortening of an image occurs when the PID is at

Answer 52

Too high a vertical angle

Question 53

Processed films that turn brown and discolor after a few days are the results of

Answer 53

Improper washing

Question 54

A periapical X-ray

Answer 54

Shows the entire tooth and surrounding tissues

Question 55

When mounting an upper bicuspid film, a good anatomical landmark to look for would be

Answer 55

The maxillary sinuses

Question 56

Where should the dot be placed when taking a bite wing X-ray

Answer 56

Dot placement does not matter

Question 57

When taking X-rays on someone who is missing teeth what can we use to support the X-ray film holders

Answer 57

Cotton rolls

Question 58

What is a bitewing radiograph

Answer 58

Examination of the interproximal areas of the teeth

Question 59

Which type of holder is used for the paralleling technique

Answer 59

XCP kit

Question 60

Overexposure In a short period short term side effect

Answer 60

Diarrhea

Question 61

Most common film speed used

Answer 61

D