MDA Chapter 68 Questions NDAEB Prep With Correct Answers
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Course
MDA NDAEB
Institution
MDA NDAEB
With regard to tissues most sensitive to radiation, which of the following is the correct order from most sensitive to least sensitive tissue? - ️️skin, oral mucosa, thyroid gland, nerve
You are destroying old patient records. How do you dispose of the dental radiographs? - ️️as normal off...
MDA Chapter 68 Questions NDAEB Prep
With regard to tissues most sensitive to radiation, which of the following is the correct order
from most sensitive to least sensitive tissue? - ✔ ✔ skin, oral mucosa, thyroid gland, nerve
You are destroying old patient records. How do you dispose of the dental radiographs? - ✔ ✔
as normal office waste
You have a new dental x-ray machine. The length of the PID is changing from 16 to 8 inches.
How does this affect the intensity of the x-ray beam? What adjustment will you need to make
to keep the density of your images consistent? - ✔ ✔ he resultant beam will be four times
as intense. You will need to decrease the exposure time.
You have a package of outdated dental film. How should you dispose of it? - ✔ ✔ Contact an
approved waste removal service.
A dental assistant must remove a used scalpel blade from a reusable handle. What is the
appropriate procedure for removing the blade? - ✔ ✔ Remove the blade with a hemostat.
A periodontal pocket marker is similar in design to which other instrument? - ✔ ✔ cotton
pliers
A posterior tooth with a deep preparation close to the pulp chamber may require a base that is
designed to prepare pulpal defense by functioning as a(n): - ✔ ✔ insulating base
A reference radiograph is used to compare ________________. - ✔ ✔ densities
A reproduction of an individual tooth on which a wax pattern may be constructed for a cast
crown is a(n) - ✔ ✔ die
Alcohol hand rubs are most effective in dental settings when: - ✔ ✔ there is no debris on
the hands of the dental assistant
An intermediate-level surface disinfectant would not kill which microbe? - ✔ ✔ spores
Divergence of the x-ray beam is reduced by using ____________. - ✔ ✔ parralelling
Essential organic substances that are needed to release energy from carbohydrates, fats, and
proteins are: - ✔ ✔ vitamins
, Hand lotions with petroleum- or oil-based ingredients should not be used in a dental office
because these products can: - ✔ ✔ weaken the glove material, especially latex
How does static electricity appear on a developed film? - ✔ ✔ black branching lines
If a community is under a "boil water" alert, what type of water should be used for patient
rinsing and handwashing? - ✔ ✔ bottled or distilled water
If an administrative assistant chooses to transmit a transaction about a patient electronically,
under which Act does this task fall? - ✔ ✔ ADA
If the charting conditions indicate that there is a furcation involvement, a triangle containing
the number that indicates the level of furcation would be placed: - ✔ ✔ at the apical area
between two or more rooth branches
If the radiographic processing time is too short, how will the film appear? - ✔ ✔ light
In addition to barrier technique, which of the following is an infection control measure
concerning the wire connections from the sensor to the digital image unit? - ✔ ✔ wiping
down with an intermediate-level hospital-grade disinfectant
What is the purpose of a face-bow registration? - ✔ ✔ to measure the upper teeth as
compared with the temporomandibular joint and to analyze the relationship of the maxillary
arch to the patient's face
What is the respiration pattern for a patient who is hyperventilating? - ✔ ✔ excessively
short, rapid breaths
What should be done to a blood-spotted surface before disinfecting that surface? - ✔ ✔
Clean it with a disinfectant cleaner.
What surgical procedure describes a hemisection? - ✔ ✔ removal of the root and crown by
cutting through each lengthwise
When a dental assistant is cleaning instruments, what type(s) of personal protective equipment
should be worn? - ✔ ✔ safety glasses, examination gloves, and protective gown
When adjusting a crown after cementation, the dentist most likely would use a(n) ______. - ✔
✔ stone
When densities differ by more than two steps on a stepwedge, which protocol should be
followed? - ✔ ✔ Replace the processing solutions
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