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DEN 205 Review Flashcards | StudBud
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DEN 205 Review
DEN 205 Review
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Let this quiz inspire your own quiz for formative assessment.
Flashcards
30 cards
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Questions
30
Answers
1
The OSHA requires employees who work with ionizing radiation to wear which of the following:
Dosimeter
Lead-lined gloves
All above
Lead apron
2
Which of the following does a film badge monitor?
Natural radiation exposures
Total office staff radiation exposures
Radiographer’s daily occupational radiation exposures
Patient exposures
3
Quality assurance monitoring includes1.Detailed log of all tests performed2.Monitoring schedule in the dental office
Both statements are true
Both statements are false
The first statement is false, the second statement is true
The first statement is true, second statement is false
4
The Rinn XCP is a:
Snap-on metal collimating device
Uni-bite
Beam alignment device
Styrofoam block bite
5
What is the name of the location where the x-rays are produced?
Applies Less Accepted Radiation Act
As Low As Reasonably Achievable
As Low As Radiations Applies
.All Listed Appropriate Radiation Allotments
6
What federal law was enacted in 1981 that requires all who take dental radiographs to be properly trained and certified?
Guidelines for Prescribing Dental Radiographs
Alara Concept
Consumer-Patient Radiation Health and Safety Act
Quality Assurance Program
7
Name the biggest cause of unnecessary radiation overexposure:
Using slow-speed film
Having the kVp set too high
Taking radiographs just because “the patient is due”
Taking a full mouth series every three years
8
Converting the standard system of radiation measurement to the metric system, the dosage for 100 rads is equivalent to:
1 GY
100 rems
100 GY
1 c/kg
9
When lower kilovoltage settings are used, an image with High contrast will result.
True
False
10
Primary beam is the penetrating x-ray that exits the tubehead?
False
True
11
This foramen is almond shaped and is located between the apices of the maxillary central incisors:
Superior
Mental
.Incisive
Lingual
12
The ALARA concept expresses which of the following:
Both RED and BLUE
All exposure to radiation must be kept to a minimum.
Both patient and operators should be protected from unnecessary exposure.
None of the above
13
What accounts for 70% of all the x-ray’s energy produced at the anode?
Characteristic radiation
Negative anode
Negative cathode
General radiation
14
When preparing a patient for digital exposure, what is required?
Adjusting the head rest
All of the above
Placing a lead apron
Adjusting height of the chair
15
The three major elements that make up the x-ray machine are:
.Vacuum tube, high-voltage power source, and operating console
Control panel, high-voltage power source, and collimator
Tubehead, PID, and vacuum tube
PID, collimator, and operating panel
16
Which one of these is a critical instrument?
XCP Rinn Ring
PID
Forcep
Snap a Ray E. Sensor
17
The root of the maxillary anterior image are consistently too long& seem out of proportion.What is happing to the X-Ray
Foreshortening
Magnification
Magnification
Elongation
18
The contrast is too low on the dental image. What will you need to adjust in order to increase the contrast?
Decrease mA
.Increase kV
Decrease kV
Increase mA
19
What is the radiolucent area viewable on an x-ray near the root of the first premolar?
Lamina dura
Mandibular canal
Mental foramen
Tuberosity
20
The maxillary landmark that consists of bony, scroll-shaped plates in the lateral walls of the nasal cavity is:
.Nasal cavities
Nasal septum
.Orbit
Nasal conchae
21
Which of the statements below describes the dose of radiation the body can endure with little or no chance of injury
.ALARA
Occupationally exposed dose
Radiation limit
.Maximum permissible dose
22
According to the ADA guidelines, how should each patient be treated?
As infectious based on suspicious medical history
As a source of non-communicable disease
As potentially infectious
As not being a source of infection
23
The position-indicating device (PID) is an extension of the:
Extension arm
.Tubehead
Exposure button
Control panel
24
The Stabe, Snap-a-Ray, Rinn XCP, Precision, and bite blocks are examples of:
View boxes
X-ray machines
Receptor holders
Film
25
Caries that occur under a restoration or around the margin of an existing crown are referred to as which type of decay?
Recurrent caries
Buccal caries
root caries
Dental caries
26
Which of the following structures would appear the most radiopaque?
Dental pulp
Periodontal ligament space
Air space
Metallic restorations
27
Which statement is FALSE concerning protective clothing?
It must be worn by all dental professionals.
It must be changed weekly.
It must be worn to prevent contact with infectious materials.
It must be removed before leaving the dental office.
28
The mental foramen is frequently misdiagnosed as a _________ because of its apical location:
Periapical granuloma
Dentigerous cyst
Odontoma
Radicular cyst
29
In dental radiography, the term __________ is used to describe the mean energy or penetrating ability of the x-ray beam.
Quantity
Wavelength
Quality
Intensity
30
What is the current MPD for occupationally exposed workers?
2 rad/yr
5.0 rem/yr
7.0 rem/yr
3.0 rem/yr
