Deck 28: Management of Dentin Hypersensitivity

Question 1

Ninety percent of all dentin exposure lesions occur at the cervical margin of the tooth.A localized lesion begins in the interproximal spaces.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second is false.
D) The first statement is false; the second is true.

Answer 1

The first statement is true; the second is false.

Question 2

Reduction of the rest potential or nerve membrane so that a nerve impulse is fired is known as

A) Chemical stimuli
B) Evaporative stimuli
C) Neural activity
D) Neural depolarization mechanism

Answer 2

Neural depolarization mechanism

Question 3

Who is at the greatest risk for developing dentin hypersensitivity?

A) 15-year-old boy with mild gingivitis
B) 35-year-old female with chronic periodontal disease
C) 70-year-old female with a partial denture
D) 50-year-old male with chronic periodontal disease

Answer 3

35-year-old female with chronic periodontal disease

Question 4

Each of the following practices should be taken into consideration when making a treatment plan for a patient with dentin hypersensitivity EXCEPT one.Which one is the EXCEPTION?

A) Brushing technique and frequency
B) High acidic diet
C) Use of hard-bristled toothbrush
D) High-caloric diet

Question 5

The layer of organic debris that covers dentin tubules and provides a layer of protection is called the _____layer.

Question 6

Dentin hypersensitivity that is experienced shortly after periodontal therapy procedures,restorative procedures,and teeth bleaching is considered ______________.

Question 7

Which type of sensitivity is caused by dehydration?

A) Chemical
B) Evaporative
C) Emotional
D) Thermal

Question 8

What is the agent that causes nerve hyperpolarization?

A) AgN
B) Ca₂NO
C) KNO₃
D) PNO₃

Question 9

Each of the following techniques is used to treat dentin hypersensitivity EXCEPT one.Which one is the EXCEPTION?

A) Interruption of nerve transmission
B) Tubule occlusion
C) Protein precipitants
D) Tubule dehydration

Question 10

Dentin hypersensitivity is caused when a physical stimulus is applied to exposed dentin tubules.Exposure of A-delta fibers is caused by disturbance of fluid creating a sharp pain sensation.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second is false.
D) The first statement is false; the second is true.

Question 11

A conservative course of treatment for dentin hypersensitivity is recommended because treatments are

A) Expensive and long-lived
B) Inexpensive and long-lived
C) Inexpensive and short-lived
D) Expensive and short-lived

Question 12

Each of the following statements are true of A-delta fibers EXCEPT one.Which one is the EXCEPTION?

A) A-delta fibers are involved in Brannstrom's hydrodynamic theory of dentinal hypersensitivity.
B) A-delta fibers can cause localized,sharp pain.
C) A-delta fibers are located in the dentin tubules.
D) A-delta fibers are commonly associated with electrical stimuli.

Question 13

Which factor can be a significant contributor to the development of dentin hypersensitivity?

A) Acidic foods and beverages
B) Bulimia
C) Gastrointestinal reflux disease
D) A and B
E) All of the above

Question 14

The treatment for dentin hypersensitivity that is best for long-term use and replaces the smear layer once applied is called __________.

Question 15

Each of the following factors have an effect on the duration and severity of dentin hypersensitivity EXCEPT one.Which one is the EXCEPTION?

A) Amount of dentin tubules exposed
B) Patient age
C) Type of stimuli
D) Occlusion classification

Question 16

Identify the teeth at risk for hypersensitivity in the order of greatest risk to least.

A) Canines and first premolars,incisors,second premolars,molars
B) Canines and first premolars,second premolars,molars,incisors
C) Second premolars,canines and first premolars,incisors,molars
D) Incisors,canines and first premolars,molars,second premolars

Question 17

Calculus provides a soothing coating to the tooth to make it less sensitive.Calculus is the most highly calcified and hardest tissue in the body.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second is false.
D) The first statement is false; the second is true.

Question 18

When traditional therapeutic modalities are unsuccessful in the treatment of dentin hypersensitivity each of the following advanced treatments are acceptable options to control symptoms EXCEPT one.Which one is the EXCEPTION?

A) Complete occlusal adjustment
B) Gingival grafting
C) Iontophoresis
D) Laser gingival curettage

Question 19

Each of the following is a predisposing factor of dentin hypersensitivity EXCEPT one.Which one is the EXCEPTION?

A) Thin gingival tissue
B) Anatomical architecture of alveolar bone
C) Improper brushing technique
D) Presence of third molars

Question 20

Dental hygienists can intervene in the treatment of dentin hypersensitivity using all of the following methods EXCEPT one.Which one is the EXCEPTION?

A) Apply an acidic agent and dry with air to the surface.
B) Review and suggest behavioral changes.
C) Put to use mechanisms of desensitization.
D) Scale the teeth thoroughly.