DHYG 125 Exam I Question and
answers correctly solved 2026/2027
Which of the following is the most common desensitizing agent in over-the-counter dentrifices? -
correct answer Potassium Nitrate
A person who is left-handed would be most likely to experience dentinal hypersensitivity in which of the
following areas? - correct answer Buccal surfaces of the patient's right-sided teeth
Which of the following is the currently accepted theory for dentinal sensitivity? - correct answer Fluid
movement through dentinal tubules stimulates receptors in the pulp.
Which of the following types of pain fibers is thought to be responsible for dentinal hypersensitivity? -
correct answer A-delta fibers
The pain associated with dentinal hypersensitivity is characterized as - correct answer short and sharp
When the sensitivity experienced by the patient is dentinal in nature, a paste or varnish may be effective
enough to make treatment comfortable. If longer duration of pain control is a goal, topical anesthetic is
a better choice. - correct answer First statement is true, second statement is false
An area-specific curet is used to remove what type of deposits? - correct answer light to moderate
calculus from the roots and crowns
What is the relationship of the cutting edge of an area specific curette to the shank? - correct answer 70
degrees
Who developed the Gracey series of curets? - correct answer Clayton Gracey
answers correctly solved 2026/2027
Which of the following is the most common desensitizing agent in over-the-counter dentrifices? -
correct answer Potassium Nitrate
A person who is left-handed would be most likely to experience dentinal hypersensitivity in which of the
following areas? - correct answer Buccal surfaces of the patient's right-sided teeth
Which of the following is the currently accepted theory for dentinal sensitivity? - correct answer Fluid
movement through dentinal tubules stimulates receptors in the pulp.
Which of the following types of pain fibers is thought to be responsible for dentinal hypersensitivity? -
correct answer A-delta fibers
The pain associated with dentinal hypersensitivity is characterized as - correct answer short and sharp
When the sensitivity experienced by the patient is dentinal in nature, a paste or varnish may be effective
enough to make treatment comfortable. If longer duration of pain control is a goal, topical anesthetic is
a better choice. - correct answer First statement is true, second statement is false
An area-specific curet is used to remove what type of deposits? - correct answer light to moderate
calculus from the roots and crowns
What is the relationship of the cutting edge of an area specific curette to the shank? - correct answer 70
degrees
Who developed the Gracey series of curets? - correct answer Clayton Gracey
