NBDHE DENTAL HYGIENIST PRACTICE TEST
QUESTION & ANSWERS 2024 -2025
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
QUESTION & ANSWERS 2024 -2025
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
