NBDHE Dental Hygienist Practice Test with complete solution
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Course
Dental Hygiene
Institution
Dental Hygiene
Hypersensitivity of a root lessens as the tooth forms which of the following?
a. Periodontal Ligament
b. Pulp
c. Cellular cementum
d. Enamel
c. Cellular cementum
What nerve supplies the intrinsic muscles of the tongue?
a. Trochlear
b. Trigeminal
c. Glossopharyngeal
d. Hypoglossal
e...
NBDHE Dental Hygienist Practice Test
with complete solution
Hypersensitivity of a root lessens as the tooth forms which of the following?
a. Periodontal Ligament
b. Pulp
c. Cellular cementum
d. Enamel - ANSWER- c. Cellular cementum
What nerve supplies the intrinsic muscles of the tongue?
a. Trochlear
b. Trigeminal
c. Glossopharyngeal
d. Hypoglossal
e. Accessory - ANSWER- d. Hypoglossal
.Which of the following is the most radioresistant?
a. Glands
b. Reproductive organs
c. Bone Marrow
d. Skin
e. Nerves - ANSWER- e. Nerves
Fluoride is typically introduced in all of the following ways except by
____________?
a. Drinking water
b. Vitamins
c. Injection
d. Toothpaste
e. Mouthwash - ANSWER- c. Injection
Gingivitis is considered controlled when
a. the gums reach the crown.
, b. no deep pockets appear in the gums
c. the gums appear firm
d. the plaque has been removed
e. there's no bleeding around the gums - ANSWER- e. there's no bleeding around
the gums
A flat stone may be used to sharpen a curette by hand. The face of the curette
should be at what angle to the stone?
a. 50-65 degrees
b. 75-85 degrees
c. 90-100 degrees
d. 100-110 degrees
e. 125-135 degrees - ANSWER- d. 100-110 degrees
Radiographic intensifying screens are used for
a. magnification
b. sharpening the image
c. reducing the patient dose
d. reflecting harmful rays
e. expediting the processing time - ANSWER- c. reducing the patient dose
After an outbreak of herpetic gingivostomatitis, the herpes simplex virus may
remain dormant in which of the following?
a. Sensory ganglion
b. Salivary Glands
c. Blood
d. Ligaments
e. Lymph nodes - ANSWER- a. Sensory ganglion
Which of the following is a characteristic of an overdenture?
a. No natural teeth remain
b. Natural teeth remain
c. Used with an overbite
d. Used with an underbite
e. Covers the denture - ANSWER- b. Natural teeth remain
A dental carie is another name for a _____________.
a. Dental iinstrument
b. The gum line
c. Cavity
d. Plaque build-up
, e. Gingivitis - ANSWER- c. Cavity
Which of the following is one of the main reasons for a root canal?
a. tooth is cracked
b. The pulp can't be fixed
c. Gums are bleeding
d. A cavity is present
e. Enamel is worn off - ANSWER- b. . The pulp can't be fixed
Vital whitening is performed on which of the following?
a. Dentures
b. Tooth with no live nerve
c. Tooth with live nerve
d. Cavities
e. Tooth roots - ANSWER- c. Tooth with live nerve
A vasoconductor does which of the following when used in conjunction with
Lidocaine?
a. Helps the drug get into the blood stream
b. Helps the numbing drug work
c. Helps the drug resist breaking down
d. Makes the numbness wear off
e. Makes the numbness last longer - ANSWER- e. Makes the numbness last
longer
When a periapical abscess forms, it indicates what?
a. The gums are infected
b. Tooth enamel is worn thin
c. A cavity
d. A dead or dying tooth root
e. Plaque build-up - ANSWER- d. A dead or dying tooth root
If a dentist is placing a bonded filling, she will do which of the following to ensure
the filling bonds to the tooth?
a. X-ray the tooth
b. Scrape the tooth
c. Polish the tooth
d. Etch the tooth
e. Drill the tooth - ANSWER- d. Etch the tooth
A pedicle graft uses a flap of tissue from which part of the mouth?
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