Dental Nurse 314 exam- Complete
Chapters||Over 400 Most Tested
Questions And Well Verified
Correct Answers||Already Graded
A+
Mild burns, cell mutation and cancer are all hazards of what? -CORRECT ANSWER
Ionising radiation from x-rays
Can X-rays be seen, heard or felt? -CORRECT ANSWER No
What is the safe level of use with x-rays? -CORRECT ANSWER There isn't a safe level
What does every radiation exposure cause? -CORRECT ANSWER Tissue damage
Long term, low level exposure to radiation. -CORRECT ANSWER Stochastic
Tissue reactions are... -CORRECT ANSWER Non-cancer damaging effects
Random development when exposed to any radiation dose:
Heritable effects - mutations from change to gene/chromosome
Cancer induction - irradiated body cell causes radiation induced malignancy cancer to
develop -CORRECT ANSWER Stochastic effects
IRR 1999 -CORRECT ANSWER Ionising Radiations Regulations 1999
IRMER 2000 -CORRECT ANSWER Ionising Radiation (Medical Exposure) Regulations
ALARP (As Low As Reasonably Practicable) -CORRECT ANSWER Principle of
keeping radiation levels low
Ensures local rules are set and placed by every x-ray machine -CORRECT ANSWER
IRR 1999 compliance
Dedicated legal person required to ensure full compliance in the workplace -CORRECT
ANSWER IRR 1999 compliance
A Radiation Protection Advisor (RPA) and Radiation Protection Supervisor (RPS) are in
compliance of... -CORRECT ANSWER IRR 1999
Justification, optimisation, limitation, quality assurance and staff training. -CORRECT
ANSWER IRMER 2000
,Operator - any member of the dental team who carries out all or part of the duties
involved with exposure and processing -CORRECT ANSWER IRMER 2000
Dentist radiographer who takes responsibility for justifying the taking of a radiograph -
CORRECT ANSWER IRMER practitioner
1. Switch power off if: x-ray machine seriously malfunctioning, smell of smoke or sudden
problem
2. Carry out controlled shut down of equipment
3. Ensure no use of equipment by informing staff and notifying RPA/RPS.
These are all steps of the... -CORRECT ANSWER Procedure for managing an
equipment failure
If more than 150 intraoral or 50 dental pantomograph films are taken p/week staff
should wear a... -CORRECT ANSWER Personal monitoring dosemeter
Electromagnetic energy passes through the object and reacts with the... -CORRECT
ANSWER Photographic layer of film
This will show up as a circular area at the apex of the tooth. -CORRECT ANSWER
Chronic periapical abscess
This shows up as a dark area of destruction extending inwards from the enamel
surface. -CORRECT ANSWER Caries
Consequences of incorrect mounting are films getting mixed up or lost, retakes being
needed, a breach of confidentiality and... -CORRECT ANSWER The wrong tooth
receiving treatment
Which set of regulations sets out the responsibility of dental personnel involved with
radiography? -CORRECT ANSWER IRMER 2000
Which set of regulations states there must be a set of local rules displayed by each x-
ray machine? -CORRECT ANSWER IRR 1999
Staff training radiography records are a key point in which piece of legislation? -
CORRECT ANSWER IRMER 2000
Periodontal disease shows up as what on a radiograph? -CORRECT ANSWER Loss of
lamina dura
An alternative to using a bitewing holder to achieve a bitewing radiograph is... -
CORRECT ANSWER Sticky tabs
,What happens if incorrect angulation occurs for a bitewing? -CORRECT ANSWER
Contact points appear overlapped
Which is the best radiograph to take for assessment of the antral floor? -CORRECT
ANSWER Occlusal
A periapical radiograph is taken to show... -CORRECT ANSWER Individual teeth
The two techniques used to take periapicals are: -CORRECT ANSWER Bisected angle
and paralleling
Occlusal radiographs show... -CORRECT ANSWER Either mandible or maxilla
One of the uses of an occlusal radiograph is... -CORRECT ANSWER Assessment of
the condition of the antral floor
Extraoral cassettes contain... -CORRECT ANSWER 2 intensifying screens
How many stages are involved in chemical processing? -CORRECT ANSWER 5
Cephalostats are used extensively in... -CORRECT ANSWER Orthodontics
Which type of radiograph would be taken to assess jaw relationships? -CORRECT
ANSWER Cephalostat
Orthopantomographs show... -CORRECT ANSWER Both jaws in full and all teeth
The stages of manual chemical processing are: -CORRECT ANSWER Develop, wash,
fix, wash, dry
Processing chemicals should be disposed of as... -CORRECT ANSWER Non-infectious
waste
In manual processing a film should be immersed in fixer for... -CORRECT ANSWER 8-
10 minutes
Stochastic effects can take place at what level of radiation exposure? -CORRECT
ANSWER Any level
In manual processing a film should be immersed in developer for... -CORRECT
ANSWER 5 minutes
In manual processing the temperature of the developer should be... -CORRECT
ANSWER 20 degrees celcius
, Elongation of a radiograph is caused by... -CORRECT ANSWER Collimator angulation
is too shallow
Foreshortening of a radiograph is caused by... -CORRECT ANSWER Collimator
angulation is too steep
Coning of an image on a radiograph is caused by... -CORRECT ANSWER Collimator
angulation is not central to film
A fogged film is caused by... -CORRECT ANSWER Exposed to light before exposure
A faint image on a radiograph is caused by... -CORRECT ANSWER Underdeveloped
A dark film is caused by... -CORRECT ANSWER Overdeveloped
A partly blank film is caused by... -CORRECT ANSWER Film partially immersed in
developer solution
Blank spots on a radiograph are caused by... -CORRECT ANSWER Film splashed with
fixer before developing
IRR 1999 is concerned with the protection of... -CORRECT ANSWER Staff
Brown or green stains on a radiograph are caused by... -CORRECT ANSWER
Inadequate fixing due to old solution
The presence of crystals on a radiograph is due to... -CORRECT ANSWER Insufficient
washing after fixing
The layers within a film packet in order from the machine tube are... -CORRECT
ANSWER Paper, film, paper, lead foil
Occlusal caries, inter proximal caries and periodontal bone loss can be diagnosed with
which type of radiograph? -CORRECT ANSWER Bitewings
A lid should always cover the developing tank to prevent... -CORRECT ANSWER
Oxidation
A periapical view with the apices off the film has been... -CORRECT ANSWER Coned
off
IRMER 2000 is concerned with the protection of... -CORRECT ANSWER Patients
Cephalostats are views used to... -CORRECT ANSWER Determine the severity of jaw
malocclusions
Chapters||Over 400 Most Tested
Questions And Well Verified
Correct Answers||Already Graded
A+
Mild burns, cell mutation and cancer are all hazards of what? -CORRECT ANSWER
Ionising radiation from x-rays
Can X-rays be seen, heard or felt? -CORRECT ANSWER No
What is the safe level of use with x-rays? -CORRECT ANSWER There isn't a safe level
What does every radiation exposure cause? -CORRECT ANSWER Tissue damage
Long term, low level exposure to radiation. -CORRECT ANSWER Stochastic
Tissue reactions are... -CORRECT ANSWER Non-cancer damaging effects
Random development when exposed to any radiation dose:
Heritable effects - mutations from change to gene/chromosome
Cancer induction - irradiated body cell causes radiation induced malignancy cancer to
develop -CORRECT ANSWER Stochastic effects
IRR 1999 -CORRECT ANSWER Ionising Radiations Regulations 1999
IRMER 2000 -CORRECT ANSWER Ionising Radiation (Medical Exposure) Regulations
ALARP (As Low As Reasonably Practicable) -CORRECT ANSWER Principle of
keeping radiation levels low
Ensures local rules are set and placed by every x-ray machine -CORRECT ANSWER
IRR 1999 compliance
Dedicated legal person required to ensure full compliance in the workplace -CORRECT
ANSWER IRR 1999 compliance
A Radiation Protection Advisor (RPA) and Radiation Protection Supervisor (RPS) are in
compliance of... -CORRECT ANSWER IRR 1999
Justification, optimisation, limitation, quality assurance and staff training. -CORRECT
ANSWER IRMER 2000
,Operator - any member of the dental team who carries out all or part of the duties
involved with exposure and processing -CORRECT ANSWER IRMER 2000
Dentist radiographer who takes responsibility for justifying the taking of a radiograph -
CORRECT ANSWER IRMER practitioner
1. Switch power off if: x-ray machine seriously malfunctioning, smell of smoke or sudden
problem
2. Carry out controlled shut down of equipment
3. Ensure no use of equipment by informing staff and notifying RPA/RPS.
These are all steps of the... -CORRECT ANSWER Procedure for managing an
equipment failure
If more than 150 intraoral or 50 dental pantomograph films are taken p/week staff
should wear a... -CORRECT ANSWER Personal monitoring dosemeter
Electromagnetic energy passes through the object and reacts with the... -CORRECT
ANSWER Photographic layer of film
This will show up as a circular area at the apex of the tooth. -CORRECT ANSWER
Chronic periapical abscess
This shows up as a dark area of destruction extending inwards from the enamel
surface. -CORRECT ANSWER Caries
Consequences of incorrect mounting are films getting mixed up or lost, retakes being
needed, a breach of confidentiality and... -CORRECT ANSWER The wrong tooth
receiving treatment
Which set of regulations sets out the responsibility of dental personnel involved with
radiography? -CORRECT ANSWER IRMER 2000
Which set of regulations states there must be a set of local rules displayed by each x-
ray machine? -CORRECT ANSWER IRR 1999
Staff training radiography records are a key point in which piece of legislation? -
CORRECT ANSWER IRMER 2000
Periodontal disease shows up as what on a radiograph? -CORRECT ANSWER Loss of
lamina dura
An alternative to using a bitewing holder to achieve a bitewing radiograph is... -
CORRECT ANSWER Sticky tabs
,What happens if incorrect angulation occurs for a bitewing? -CORRECT ANSWER
Contact points appear overlapped
Which is the best radiograph to take for assessment of the antral floor? -CORRECT
ANSWER Occlusal
A periapical radiograph is taken to show... -CORRECT ANSWER Individual teeth
The two techniques used to take periapicals are: -CORRECT ANSWER Bisected angle
and paralleling
Occlusal radiographs show... -CORRECT ANSWER Either mandible or maxilla
One of the uses of an occlusal radiograph is... -CORRECT ANSWER Assessment of
the condition of the antral floor
Extraoral cassettes contain... -CORRECT ANSWER 2 intensifying screens
How many stages are involved in chemical processing? -CORRECT ANSWER 5
Cephalostats are used extensively in... -CORRECT ANSWER Orthodontics
Which type of radiograph would be taken to assess jaw relationships? -CORRECT
ANSWER Cephalostat
Orthopantomographs show... -CORRECT ANSWER Both jaws in full and all teeth
The stages of manual chemical processing are: -CORRECT ANSWER Develop, wash,
fix, wash, dry
Processing chemicals should be disposed of as... -CORRECT ANSWER Non-infectious
waste
In manual processing a film should be immersed in fixer for... -CORRECT ANSWER 8-
10 minutes
Stochastic effects can take place at what level of radiation exposure? -CORRECT
ANSWER Any level
In manual processing a film should be immersed in developer for... -CORRECT
ANSWER 5 minutes
In manual processing the temperature of the developer should be... -CORRECT
ANSWER 20 degrees celcius
, Elongation of a radiograph is caused by... -CORRECT ANSWER Collimator angulation
is too shallow
Foreshortening of a radiograph is caused by... -CORRECT ANSWER Collimator
angulation is too steep
Coning of an image on a radiograph is caused by... -CORRECT ANSWER Collimator
angulation is not central to film
A fogged film is caused by... -CORRECT ANSWER Exposed to light before exposure
A faint image on a radiograph is caused by... -CORRECT ANSWER Underdeveloped
A dark film is caused by... -CORRECT ANSWER Overdeveloped
A partly blank film is caused by... -CORRECT ANSWER Film partially immersed in
developer solution
Blank spots on a radiograph are caused by... -CORRECT ANSWER Film splashed with
fixer before developing
IRR 1999 is concerned with the protection of... -CORRECT ANSWER Staff
Brown or green stains on a radiograph are caused by... -CORRECT ANSWER
Inadequate fixing due to old solution
The presence of crystals on a radiograph is due to... -CORRECT ANSWER Insufficient
washing after fixing
The layers within a film packet in order from the machine tube are... -CORRECT
ANSWER Paper, film, paper, lead foil
Occlusal caries, inter proximal caries and periodontal bone loss can be diagnosed with
which type of radiograph? -CORRECT ANSWER Bitewings
A lid should always cover the developing tank to prevent... -CORRECT ANSWER
Oxidation
A periapical view with the apices off the film has been... -CORRECT ANSWER Coned
off
IRMER 2000 is concerned with the protection of... -CORRECT ANSWER Patients
Cephalostats are views used to... -CORRECT ANSWER Determine the severity of jaw
malocclusions
