Question 1

Which of the following treatments is the most effective in reducing gingivitis?

Accepted Answer

A)  Sodium 2% fluoride 
B)  APF 1.23% 
C)  0.4% SnF and 1.1% NaF in APF 
D)  0.3% triclosan 
A)  Sodium 2% fluoride 
B)  APF 1.23% 
C)  0.4% SnF and 1.1% NaF in APF 
D)  0.3% triclosan D

Question 2

Patients should rinse with chlorhexidine for 30 seconds with 15 ml of chlorhexidine _____ a day.

Accepted Answer

A)  once 
B)  twice 
C)  three times 
D)  four times 
A)  once 
B)  twice 
C)  three times 
D)  four times B

Question 3

Tooth bleaching can increase the risk for sensitivity.

Accepted Answer

A) True 
 B)False  True

Question 4

The patient should not eat for _____ after the application of NaF varnish and should not brush his teeth for _____.

Accepted Answer

A)  30 minutes; 30 minutes 
B)  30 minutes; 60 minutes 
C)  1 hour; 2 hours 
D)  2 hours; 1 day 
E)  2 hours; 2 days 
A)  30 minutes; 30 minutes 
B)  30 minutes; 60 minutes 
C)  1 hour; 2 hours 
D)  2 hours; 1 day 
E)  2 hours; 2 days

Question 5

Experts recommend that the average life of a toothbrush is _____ months.

Accepted Answer

A)  3 
B)  6 
C)  12 
D)  24 
A)  3 
B)  6 
C)  12 
D)  24

Question 6

Which of the following agents is added to mouth rinses to function as a foaming agent that helps remove debris?

Accepted Answer

A)  Alcohol 
B)  Surfactants 
C)  Glycerin 
D)  Benzoic acid 
A)  Alcohol 
B)  Surfactants 
C)  Glycerin 
D)  Benzoic acid

Question 7

Dental disorders result in 7 million days of lost work each year.

Accepted Answer

A) True 
 B)False

Question 8

Guidelines for using at-home topical fluoride preparations include:

Accepted Answer

A)  topical fluoride rinses should be used no more than four times per day. 
B)  brush teeth with a fluoride dentifrice after rinsing with the at-home topical fluoride preparation. 
C)  swallow the fluoride rinse for a systemic effect. 
D)  rinse vigorously for approximately 60 seconds. 
A)  topical fluoride rinses should be used no more than four times per day. 
B)  brush teeth with a fluoride dentifrice after rinsing with the at-home topical fluoride preparation. 
C)  swallow the fluoride rinse for a systemic effect. 
D)  rinse vigorously for approximately 60 seconds.

Question 9

Which of the following statements is true concerning fluoride toxicity?

Accepted Answer

A)  Both acute and chronic toxicity can occur with fluoride use. 
B)  Acute but not chronic toxicity can occur with fluoride use. 
C)  Chronic but not acute toxicity can occur with fluoride use. 
D)  Neither acute nor chronic toxicity can occur with fluoride use. 
A)  Both acute and chronic toxicity can occur with fluoride use. 
B)  Acute but not chronic toxicity can occur with fluoride use. 
C)  Chronic but not acute toxicity can occur with fluoride use. 
D)  Neither acute nor chronic toxicity can occur with fluoride use.

Question 10

What percentage of adult Americans have untreated tooth decay?

Accepted Answer

A)  3% 
B)  13% 
C)  23% 
D)  33% 
A)  3% 
B)  13% 
C)  23% 
D)  33%

Question 11

The dental hygienist should teach the patient that the best way to ensure healthy teeth and gingival tissues is to remove plaque mechanically by brushing at least twice daily and by _____ at least once a day.

Accepted Answer

A)  rinsing with mouthwash 
B)  flossing 
C)  massaging the tissue 
D)  using a toothpick 
A)  rinsing with mouthwash 
B)  flossing 
C)  massaging the tissue 
D)  using a toothpick

Question 12

Which of the following statements is true regarding use of dentifrices in the United States?

Accepted Answer

A)  Nearly 75% of all dentifrices or toothpastes available in the United States contain some form of fluoride, but the remaining 25% of these products do not. 
B)  Some products contain triclosan 0.3%, as well as fluoride, but these products do not carry ADA approval for claimed effects against gingivitis. 
C)  Studies have shown that children between the ages of 10 and 15 years who brush three times daily with a fluoride dentifrice showed no reduction in the decayed-missing-filled rate compared with those that only brush once a day. 
D)  Children should use a pea-sized amount of toothpaste to minimize fluoride ingestion. 
A)  Nearly 75% of all dentifrices or toothpastes available in the United States contain some form of fluoride, but the remaining 25% of these products do not. 
B)  Some products contain triclosan 0.3%, as well as fluoride, but these products do not carry ADA approval for claimed effects against gingivitis. 
C)  Studies have shown that children between the ages of 10 and 15 years who brush three times daily with a fluoride dentifrice showed no reduction in the decayed-missing-filled rate compared with those that only brush once a day. 
D)  Children should use a pea-sized amount of toothpaste to minimize fluoride ingestion.

Question 13

Which of the following professionally applied preparations for in-office application has the highest fluoride concentration (ppm)?

Accepted Answer

A)  Sodium 2% 
B)  Sodium varnish 5% 
C)  APF 1.23% 
D)  0.4% SnF and 1.1% NaF in APF 
A)  Sodium 2% 
B)  Sodium varnish 5% 
C)  APF 1.23% 
D)  0.4% SnF and 1.1% NaF in APF

Question 14

Experts recommend that fluoride applications remain in place for:

Accepted Answer

A)  30 seconds. 
B)  1 minute. 
C)  2 minutes. 
D)  4 minutes. 
A)  30 seconds. 
B)  1 minute. 
C)  2 minutes. 
D)  4 minutes.

Question 15

Proteins in dairy products raise pH levels and can inhibit bacterial growth.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following liquids may be used during management of acute fluoride toxicity?

Accepted Answer

A)  Apple juice 
B)  Lemonade 
C)  Milk 
D)  Coffee 
A)  Apple juice 
B)  Lemonade 
C)  Milk 
D)  Coffee

Question 17

Which of the following statements is true of professionally applied NaF varnish?

Accepted Answer

A)  NaF varnish is available in Europe but is not currently available in the United States as a dentin-desensitizing agent and as a cavity liner. 
B)  The U.S. Food and Drug Administration (FD
A) has approved the varnish for its anticaries effect. 
C)  The use of fluoride varnish for caries prevention has been endorsed by the ADA. 
D)  NaF varnish is available as a 5% solution. 
A)  NaF varnish is available in Europe but is not currently available in the United States as a dentin-desensitizing agent and as a cavity liner. 
B)  The U.S. Food and Drug Administration (FD
A) has approved the varnish for its anticaries effect. 
C)  The use of fluoride varnish for caries prevention has been endorsed by the ADA. 
D)  NaF varnish is available as a 5% solution.

Question 18

Which of the following statements is true of the use of chlorhexidine rinse for the treatment of gingivitis?

Accepted Answer

A)  Chlorhexidine is active against gram-positive but not gram-negative bacteria. 
B)  Chlorhexidine is subject to bacterial resistance. 
C)  Chlorhexidine binds to the bacterial cell membrane and increases its permeability. 
D)  Chlorhexidine is used prophylactically. 
A)  Chlorhexidine is active against gram-positive but not gram-negative bacteria. 
B)  Chlorhexidine is subject to bacterial resistance. 
C)  Chlorhexidine binds to the bacterial cell membrane and increases its permeability. 
D)  Chlorhexidine is used prophylactically.

Question 19

According to the American Dental Association (ADA), which of the following groups of adults should receive professionally applied fluoride products?

Accepted Answer

A)  All adults 
B)  Only adults with active caries in the last 3 years with risk factors for caries 
C)  Only adults with active caries in the last 3 years without risk factors for caries 
D)  Only adults without active caries in the last 3 years without risk factors for caries 
E)  No adults 
A)  All adults 
B)  Only adults with active caries in the last 3 years with risk factors for caries 
C)  Only adults with active caries in the last 3 years without risk factors for caries 
D)  Only adults without active caries in the last 3 years without risk factors for caries 
E)  No adults

Question 20

Which of the following statements is true of NaF varnish as a professionally applied topical agent?

Accepted Answer

A)  The varnish requires prior oral prophylaxis. 
B)  The varnish stays on the enamel longer than topical fluoride. 
C)  The varnish can be applied if saliva is present. 
D)  Both a and b are true. 
E)  Both b and c are true. 
A)  The varnish requires prior oral prophylaxis. 
B)  The varnish stays on the enamel longer than topical fluoride. 
C)  The varnish can be applied if saliva is present. 
D)  Both a and b are true. 
E)  Both b and c are true.

Exam 13: Hygiene-Related Oral Disorders

Which of the following treatments is the most effective in reducing gingivitis?

Patients should rinse with chlorhexidine for 30 seconds with 15 ml of chlorhexidine _____ a day.

Tooth bleaching can increase the risk for sensitivity.

The patient should not eat for _____ after the application of NaF varnish and should not brush his teeth for _____.

Experts recommend that the average life of a toothbrush is _____ months.

Which of the following agents is added to mouth rinses to function as a foaming agent that helps remove debris?

Dental disorders result in 7 million days of lost work each year.

Guidelines for using at-home topical fluoride preparations include:

Which of the following statements is true concerning fluoride toxicity?

What percentage of adult Americans have untreated tooth decay?

The dental hygienist should teach the patient that the best way to ensure healthy teeth and gingival tissues is to remove plaque mechanically by brushing at least twice daily and by _____ at least once a day.

Which of the following statements is true regarding use of dentifrices in the United States?

Which of the following professionally applied preparations for in-office application has the highest fluoride concentration (ppm)?

Experts recommend that fluoride applications remain in place for:

Proteins in dairy products raise pH levels and can inhibit bacterial growth.

Which of the following liquids may be used during management of acute fluoride toxicity?

Which of the following statements is true of professionally applied NaF varnish?

Which of the following statements is true of the use of chlorhexidine rinse for the treatment of gingivitis?

According to the American Dental Association (ADA), which of the following groups of adults should receive professionally applied fluoride products?

Which of the following statements is true of NaF varnish as a professionally applied topical agent?

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