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DANB RHS EXAM QUESTIONS AND ANSWERS 2024
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DANB RHS EXAM QUESTIONS AND ANSWERS 2024
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DANB RHS EXAM QUESTIONS AND ANSWERSThe type of radiograph that would show the whole tooth including the crown, roots, and
jawline is called?
A. Bitewing x-ray
B. Periapical x-ray
C. Occlusal x-ray
D . Tomogram - answer- b
A bitewing radiograph is useful in diagnosing all of the following except:
A. Impacted tooth
B. Tooth decay
C. Periodontal bone loss
D. Gum disease - answer- a
A full-mouth survey generally includes:
A. 14 periapical views and 4 to 6 bitewings
B. 10 periapical views and 8 bitewings
C. 14 periapical views and 4-6 bitewings and a panoramic
D. 8 periapical views and 4 bitewings - answer- a
The best radiograph to obtain for diagnosis of temporomandibular joint (tmj) is:
A. Panoramic
B. Periapical
C. Sialography
D. Arthrography - answer- d
What type of radiograph is used by an orthodontist to assist with treatment planning?
A. Tomography
B. Sialogrophy
C. Cephalometric
D. Occlusal - answer- c
Which of the following is a true statement regarding the use of lead aprons and thyroid
collars?
A. The use of lead aprons and thyroid collars will prevent cancer from developing in the
thyroid gland
B. The apron should cover from the neck to just above the patient's knee
C. Lead aprons should be cleaned thoroughly and fold it in thirds between patient use
D. The thyroid collar is optional for older adults past childbearing years - answer- b
Where is the most appropriate place to store dental film?
A. In a cool, dry closet
B. In a refrigerator
C. In the treatment room
, D. Near the x-ray machine - answer- a
A dental assistant experience has an occupational exposure. A patient's blood has
splashed into the employees eye. Which of the following is an appropriate step to take?
A. Immediately draw blood from the patient in order to get it tested for hiv and hbv
B. Require the employee to have their own blood tested immediately for hiv and hbv
C. Document the incident, including the source individual, the employee, routes of
exposure, and how it happened
D. Check the patient's chart in determine if risk factors are present to warrant further
testing for the employee - answer- c
Which of the following is false regarding hand-washing?
A. Alcohol-based hand gel can be used in place of soap and water on hands that are
visibly dirty
B. Fingertips, thumbs, and between the fingers are three areas that are frequently not
cleaned thoroughly with hand washing
C. Alcohol-based hand gel or foam should have a concentration of 60%-95% alcohol
D. Cool water should be used to rinse hands after washing because it helps to close the
pores in the skin - answer- a
A new patient has recently moved to the area and arrives for her first appointment in the
dental practice. She is 6 months pregnant. She is complaining of a toothache. She does
not bring dental records with her. Which of the following would be the most appropriate
for obtaining dental x-rays?
A. Obtaining full melt survey as well as a panoramic in order to establish a
B. Only x-ray the area she is complaining about using the letters apron and thyroid
collar for protection
C. Hold off on any x-rays because of the pregnancy
D. Obtain a full set of bitewing x-rays to check for other areas of concern using lead
apron and thyroid collar for protection - answer- b
What is the name of the device used to monitor employees for radiation exposure?
A. Radiographometer
B. Oximeter
C. Holter monitor
D. Dosimeter - answer- d
For internal x-rays, what film speed is the fastest and reduces the amount of patient
exposure to radiation?
A. A-speed
B. D-speed
C. F-speed
D. H-speed - answer- c
Which of the following is used to control the degree of penetration of the x-ray beam?
A. Exposure button
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