Deck 19: Topical Drug Delivery Systems

Question 1

Which of the following is the primary use of oral irrigation?

A)To nonspecifically reduce bacteria and their by-products
B)To reach down to the base of deep pockets
C)To convert periodontitis into gingivitis
D)To inhibit formation of supra- and subgingival calculus

Answer 1

To nonspecifically reduce bacteria and their by-products

Question 2

Which of the following features describes oxygenating agents?

A)Hydrogen peroxide
B)Bisbiguanide
C)High substantivity
D)Releases nitrogen on contact with tooth

Answer 2

Hydrogen peroxide

Question 3

To which of the following classifications does Listerine belong?

A)Bisbiguanide
B)Quaternary ammonium compound
C)Phenolic
D)Oxygenating agent
E)Fluoride

Answer 3

Phenolic

Question 4

It is best not to use chlorhexidine immediately after toothbrushing because the positively charged chlorhexidine binds to the negatively charged fluoride molecules in toothpastes.

A)Both statement and reason are correct.
B)Both statement and reason are incorrect.
C)The statement is correct, but the reason is incorrect.
D)The statement is incorrect, but the reason is correct.

Question 5

Scope is considered as which of the following types of rinses?

A)Therapeutic
B)Cosmetic
C)Oxygenating
D)Fluoride

Question 6

Which of the following adverse effects is commonly seen with the use of chlorhexidine?

A)Dentinal sensitivity of exposed root surfaces
B)Yellow staining of teeth and tongue
C)Supragingival calculus formation
D)Dental caries

Question 7

The concentration of chlorhexidine found in Peridex is

A)0.12.
B)11.6.
C)14.0.
D)21.6.
E)27.6.

Question 8

Chlorhexidine is an ideal agent to use for adjunctive treatment of gingivitis because it has high substantivity.

A)Both statement and reason are correct.
B)Both statement and reason are incorrect.
C)The statement is correct, but the reason is incorrect.
D)The statement is incorrect, but the reason is correct.

Question 9

All of the following are first-generation agents except one. Which one is the exception?

A)Listerine
B)Cepacol
C)PerioGard
D)Hydrogen peroxide
E)Viadent Advanced Care

Question 10

Which of the following percentage of alcohol is found in original Listerine?

A)0)12%
B)12.0%
C)14.0%
D)21.6%
E)27.6%

Question 11

Which percentage of alcohol is found in chlorhexidine rinse?

A).012
B)0.12
C)11.6
D)21.7

Question 12

Which of the following rinses is classified as quaternary ammonium compound?

A)Scope
B)Listerine
C)Plax
D)Periogard
E)Peridex

Question 13

It is advised to tell the patient to routinely rinse with undiluted 3% hydrogen peroxide because peroxide will kill all of the bacteria.

A)Both statement and reason are correct.
B)Both statement and reason are incorrect.
C)The statement is correct, but the reason is incorrect.
D)The statement is incorrect, but the reason is correct.

Question 14

Which of the following is an indication for the use of supragingival irrigation?

A)To reduce dentinal hypersensitivity
B)To enhance bone regeneration
C)To irrigate the periodontal ligament
D)To flush away debris

Question 15

Which of the following features describes chlorhexidine?

A)A bisbiguanide
B)Negatively charged molecule
C)Available without a prescription in the United States
D)Alcohol free

Question 16

Which of the following statements is true about the use of an oral irrigator?

A)It is recommended to reduce ulcerations of the buccal mucosa.
B)Do not use for a periodontal abscess.
C)It can be used in place of flossing.
D)AHA has established guidelines for patients requiring antibiotic prophylaxis.

Question 17

Oral rinses are classified as which of the following types of delivery systems?

A)Topical
B)Controlled-release
C)Sustained-release
D)Systemic

Question 18

Most oral rinses are indicated for periodontitis because these antimicrobial rinses are effective against subgingival anaerobic bacteria.

A)Both statement and reason are correct.
B)Both statement and reason are incorrect.
C)The statement is correct, but the reason is incorrect.
D)The statement is incorrect, but the reason is correct.

Question 19

Which of the following features describes Listerine?

A)A bisbiguanide
B)High substantivity
C)Contains thymol
D)Alcohol free

Question 20

Which of the following statements is true about an antimicrobial rinse?

A)It is a substitute for a toothbrush.
B)It is used in patients with periodontitis.
C)It helps reduce bacterial load.
D)Patients must use it at least four times a day for it to be effective.

Question 21

Hydrogen peroxide should be used undiluted as an oral rinse.

Question 22

Chlorhexidine gluconate has high substantivity to the oral mucous membranes.

Question 23

First-generation agents have antibacterial properties with ________ substantivity.

Question 24

Chlorhexidine gluconate is poorly ________ from the oral mucous membranes.

Question 25

Povidine iodine is antibacterial.

Question 26

Oral rinses reach subgingivally.

Question 27

It is ideal to have a drug with high ________.

Question 28

Discuss the different indications for using oral rinses.

Question 29

Listerine is considered to be a first-generation agent.

Question 30

Antimicrobial agents ideally should ________ microbial colonization on the tooth surface.

Question 31

Chlorhexidine gluconate is considered to be a second-generation agent.

Question 32

Oral irrigation can be used without supplementation with brushing and flossing.

Question 33

Oral rinses are divided into therapeutic and ________ rinses.

Question 34

It is acceptable and effective to use antimicrobial mouthrinses as the only oral hygiene method of self-care.