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NBDHE DENTAL HYGIENIST EXAM 2024/2025
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NBDHE DENTAL HYGIENIST EXAM 2024/2025
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NBDHE DENTAL HYGIENIST EXAM2024/2025
Hypersensitivity of a root lessens as the tooth forms which of the following?
a. Periodontal Ligament
b. Pulp
c. Cellular cementum
d. Enamel - Precise Answer ✔✔c. Cellular cementum
What nerve supplies the intrinsic muscles of the tongue?
a. Trochlear
b. Trigeminal
c. Glossopharyngeal
d. Hypoglossal
e. Accessory - Precise Answer ✔✔d. Hypoglossal
.Which of the following is the most radioresistant?
a. Glands
b. Reproductive organs
c. Bone Marrow
d. Skin
e. Nerves - Precise 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 - Precise 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 - Precise 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 - Precise 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 - Precise 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 - Precise 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 - Precise 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 - Precise 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 - Precise 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 - Precise Answer ✔✔c. Tooth with live nerve
A vasoconductor does which of the following when used in conjunction with Lidocaine?
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