Question 1

Abrasives usually do NOT damage enamel,but they may dull the tooth luster.To compensate for this,polishing agents are added to the dentifrice formulation.

Accepted Answer

C)Abrasives usually do NOT damage enamel,but they may dull the tooth luster.To compensate for this,polishing agents are added to the dentifrice formulation.

Question 2

The MOST common types of abrasives used are:

Accepted Answer

D)All of the answers are commonly used abrasives.

Question 3

Stannous fluoride,specifically the stannous ion,has reported activity against:

Accepted Answer

D)Stannous fluoride is often touted to have uses NOT only in the reduction in caries and plaque,but also improving gingival health.

Question 4

Baking soda (sodium bicarbonate)has had a long history of use as an oral-hygiene aid.The uses for these oral-hygiene aids include fighting plaque,gingivitis reduction,stain-removal,and odor-reducing efficacy.

Accepted Answer

C)Sodium bicarbonate has had a long history of use as an oral-hygiene aid,which includes fighting plaque,gingivitis reduction,stain-removal,and odor-reducing efficacy.

Question 5

Important characteristics that lead to public acceptance of a dentifrice are:

Accepted Answer

A)Flavor,smell,color,and consistency are all characteristics that lead for public acceptance of a dentifrice.

Question 6

Potassium nitrate is a commonly used,FDA-approved,OTC desensitization agent.It reduces the reaction of nerves in the teeth to stimuli such as heat and cold.

Accepted Answer

C)Potassium nitrate is a commonly used,FDA-approved,OTC desensitization agent and reduces hypersensitivity.

Question 7

Abrasion can occur from toothbrushing.Toothbrush abrasion usually appears as a V-shaped notch in the cementum apical to the cementoenamel junction.

Accepted Answer

C)When toothbrush abrasion damage does occur,it usually appears as a V-shaped notch in the cementum apical to the cementoenamel junction and is termed toothbrush abrasion.

Question 8

Humectants were added to maintain the moisture and prevent hardening.Commonly used humectants are sorbitol,mannitol,glycerol,and propylene glycol.

Accepted Answer

C)Humectants were added to maintain the moisture and prevent hardening and commonly used humectants are sorbitol,mannitol,glycerol,and propylene glycol.

Question 9

The degree of dentifrice abrasiveness depends on:

Accepted Answer

D)Dentifrice abrasiveness is dependent upon the hardness,size and shape of the particle.

Question 10

Smaller particles (1 mm)have an abrasive action,and larger particles (20 mm)have a polishing action.

Accepted Answer

D)All sizes of particles may be used for polishing and abrasion;however larger particles are better used for abrasion and smaller particles are better used for polishing.

Quiz 11: Dentifrices,Mouthrinses,and Chewing Gums