Wilkins Chapter 41: Dentinal Hypersensitivity Quiz (exam)

Pain elicited by a stimulus and alleviated upon its removal is called

A.) Chemical Hypersensitivity

B.) Dentinal Hypersensitivity

C.) Pulpal Hypersensitivity

D.) Thermal Hypersensitivity

B.) Dentinal Hypersensitivity

Numerous types of stimuli can lead to pain response in individuals with exposed dentin surfaces. Which one is not a stimuli?

A.) tactile

B.) thermal

C.) osmotic

D.) sharp

E.) chemical

D.) sharp

T/F: Dull, short, or transient pain with rapid onset are characteristics of pain from hypersensitivity.

False (sharp not dull)

Which of the following are mechanisms of dentin exposure that leads to hypersensitivity?

A.) gingival recession

B.) loss of cementum

C.) subsequent dentin exposure

D.) all of the above

E.) none of the above

D.) all of the above

T/F: Erosion can occur from dietary acids, such as citrus fruits/juices, wine, and carbonated drinks. Hypersensitivity can be a clinical outcome of erosion.

A.) first statement true, second statement false.

B.) first statement false, second statement true.

C.) both statements are false.

D.) both statements are true.

D.) both statements are true.

Which is the currently accepted theory of dentinal hypersensitivity?

A.) hydrodynamic theory

B.) odontoblast receptor theory

C.) direct innervation

D.) all were proven false theories

A.) hydrodynamic theory

T/F: The Hydrodynamic theory is when a stimulus at the outer aspect of dentin will cause fluid movement within the Dentinal tubules. Fluid movement creates pressure on the nerve endings within the Dentinal tubule, which transmits the pain impulse by stimulating the nerves in the dentin.

A.) first statement true, second statement false.

B.) first statement false, second statement true.

C.) both statements are false.

D.) both statements are true.

A.) first statement true, second statement false. (Stimulates the nerves in the pulp, not dentin)

What occurs by mineral deposition within tubules as a result of traumatic stimuli, such as attrition or dental caries?

A.) smear layer

B.) tertiary dentin

C.) sclerosis of dentin

D.) secondary dentin

C.) sclerosis of dentin

With aging, ___________ ____________ accumulates, resulting in a smaller pulp chamber with fewer nerve endings and less sensitivity.

A.) smear layer

B.) tertiary dentin

C.) sclerosis of dentin

D.) secondary dentin

D.) secondary dentin

Which is the best desensitizing agent available for use in dentinal hypersensitivity?

A.) potassium citrate

B.) sodium fluoride

C.) potassium oxalate

D.) potassium nitrate

D.) potassium nitrate

Many OTC sensitivity reducing denitrifies, _____ potassium nitrate, sodium fluoride, or stannous fluoride separately or in combination are the active desensitizing agents.

A.) 1%

B.) 2%

C.) 4%

D.) 5%

D.) 5%