Question 1

Which of the following characteristics could contribute to the properties of an ideal intraoral topical anesthetic?

Accepted Answer

A)  Allergenic 
B)  Allow pain-free application 
C)  Dissolves readily at the site of application 
D)  Produces some systemic toxicity 
A)  Allergenic 
B)  Allow pain-free application 
C)  Dissolves readily at the site of application 
D)  Produces some systemic toxicity B

Question 2

Which of the following properties are advantages of topical anesthetics being in a liquid form?

Accepted Answer

A)  Provides anesthesia to a widespread area 
B)  Useful to decrease a patient's gag reflex 
C)  Can be applied to site-specific areas with an applicator 
D)  All options listed 
A)  Provides anesthesia to a widespread area 
B)  Useful to decrease a patient's gag reflex 
C)  Can be applied to site-specific areas with an applicator 
D)  All options listed D

Question 3

The over-the-counter product Anbesol with benzocaine can be safely used by all family members.

Accepted Answer

A) True 
 B)False  False

Question 4

The most commonly found form of lidocaine is in base form because it is water soluble and can easily penetrate and be absorbed into the tissues.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is true regarding Oraqix?

Accepted Answer

A)  It is a microemulsion 
B)  Does not provide pulpal anesthesia 
C)  Applicator assembly is easy 
D)  All options listed 
A)  It is a microemulsion 
B)  Does not provide pulpal anesthesia 
C)  Applicator assembly is easy 
D)  All options listed

Question 6

Topical anesthetics are available in concentrations ranging from 0.2% to 20%.Products available over the counter can have concentrations just as high as those used professional in the dental office.

Accepted Answer

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

Question 7

What is the available concentration of Oraqix?

Accepted Answer

A)  5% lidocaine and 5% prilocaine 
B)  2.5% lidocaine and 2.5% prilocaine 
C)  14% benzocaine,2% butamben,and 2% tetracaine hydrochloride 
D)  20% benzocaine and 5% lidocaine 
A)  5% lidocaine and 5% prilocaine 
B)  2.5% lidocaine and 2.5% prilocaine 
C)  14% benzocaine,2% butamben,and 2% tetracaine hydrochloride 
D)  20% benzocaine and 5% lidocaine

Question 8

Which patients may be more susceptible to adverse effects to topical anesthetic agents?

Accepted Answer

A)  Children 
B)  Elderly 
C)  Medically compromised 
D)  All options listed 
A)  Children 
B)  Elderly 
C)  Medically compromised 
D)  All options listed

Question 9

Why does the local and systemic absorption of topical anesthetics increase the risk of toxicity?

Accepted Answer

A)  Topical anesthetics do not contain vasoconstrictors. 
B)  Topical anesthetics are formulated in high concentrations. 
C)  Topical anesthetics are absorbed quickly into the tissue and blood stream due to vasodilation of the area. 
D)  All options listed 
A)  Topical anesthetics do not contain vasoconstrictors. 
B)  Topical anesthetics are formulated in high concentrations. 
C)  Topical anesthetics are absorbed quickly into the tissue and blood stream due to vasodilation of the area. 
D)  All options listed

Question 10

Tetracaine hydrochloride has a rather slow onset of action;however,it can last approximately 45 minutes.

Accepted Answer

A) True 
 B)False

Question 11

Prior to providing an injection,the topical agent should remain at the site of penetration for about 4 minutes.Anesthesia should be achieved to a depth of approximately 5-6 mm into the tissue.

Accepted Answer

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

Question 12

What FDA Category does Oraqix fall into?

Accepted Answer

A)  Category A 
B)  Category B 
C)  Category C 
D)  Categories B or C,depending on the concentration used. 
A)  Category A 
B)  Category B 
C)  Category C 
D)  Categories B or C,depending on the concentration used.

Question 13

What is the main difference in the mechanism of action between topical anesthetics and injectable anesthetics?

Accepted Answer

A)  Location of the blocking of nerve conduction 
B)  Increase of depolarization 
C)  Decrease of excitability threshold 
D)  All options listed 
A)  Location of the blocking of nerve conduction 
B)  Increase of depolarization 
C)  Decrease of excitability threshold 
D)  All options listed

Question 14

Although topical anesthetics are generally regarded as safe,if used improperly they can produce adverse reactions that are fatal.

Accepted Answer

A) True 
 B)False

Question 15

What has the combined lidocaine/prilocaine cream been approved and effectively used for?

Accepted Answer

A)  Medical procedures 
B)  Dental procedures 
C)  Topical anesthetic for skin abrasions 
D)  All options listed 
A)  Medical procedures 
B)  Dental procedures 
C)  Topical anesthetic for skin abrasions 
D)  All options listed

Question 16

List the methods for delivery of topical anesthetic drugs.

Accepted Answer

Cotton tip applicators,sprays,

Question 17

The onset of action for benzocaine is rapid.The duration of action for benzocaine is 5-15 minutes.

Accepted Answer

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

Question 18

What is the name of a common ketone topical anesthetic?

Accepted Answer

A)  Lidocaine 
B)  Dyclonine hydrochloride 
C)  Tetracaine hydrochloride 
D)  Benzocaine 
A)  Lidocaine 
B)  Dyclonine hydrochloride 
C)  Tetracaine hydrochloride 
D)  Benzocaine

Question 19

What is the name of the most potent ester topical anesthetic?

Accepted Answer

A)  2.5% Lidocaine and 2.5% prilocaine cream 
B)  Dyclonine hydrochloride 
C)  Tetracaine hydrochloride 
D)  Benzocaine 
A)  2.5% Lidocaine and 2.5% prilocaine cream 
B)  Dyclonine hydrochloride 
C)  Tetracaine hydrochloride 
D)  Benzocaine

Question 20

Which of the following is/are true regarding topical anesthetics?

Accepted Answer

A)  Allergic reactions can occur up to 2 days after the anesthetic is given. 
B)  Benzocaine and tetracaine are both amides,which increases their potential for causing an allergic reaction. 
C)  If there were an allergic reaction,it is likely to present immediately at the time of anesthesia. 
D)  All options listed 
A)  Allergic reactions can occur up to 2 days after the anesthetic is given. 
B)  Benzocaine and tetracaine are both amides,which increases their potential for causing an allergic reaction. 
C)  If there were an allergic reaction,it is likely to present immediately at the time of anesthesia. 
D)  All options listed

Which of the following characteristics could contribute to the properties of an ideal intraoral topical anesthetic?

Which of the following properties are advantages of topical anesthetics being in a liquid form?

The over-the-counter product Anbesol with benzocaine can be safely used by all family members.

The most commonly found form of lidocaine is in base form because it is water soluble and can easily penetrate and be absorbed into the tissues.

Which of the following is true regarding Oraqix?

Topical anesthetics are available in concentrations ranging from 0.2% to 20%.Products available over the counter can have concentrations just as high as those used professional in the dental office.

What is the available concentration of Oraqix?

Which patients may be more susceptible to adverse effects to topical anesthetic agents?

Why does the local and systemic absorption of topical anesthetics increase the risk of toxicity?

Tetracaine hydrochloride has a rather slow onset of action;however,it can last approximately 45 minutes.

Prior to providing an injection,the topical agent should remain at the site of penetration for about 4 minutes.Anesthesia should be achieved to a depth of approximately 5-6 mm into the tissue.

What FDA Category does Oraqix fall into?

What is the main difference in the mechanism of action between topical anesthetics and injectable anesthetics?

Although topical anesthetics are generally regarded as safe,if used improperly they can produce adverse reactions that are fatal.

What has the combined lidocaine/prilocaine cream been approved and effectively used for?

List the methods for delivery of topical anesthetic drugs.

The onset of action for benzocaine is rapid.The duration of action for benzocaine is 5-15 minutes.

What is the name of a common ketone topical anesthetic?

What is the name of the most potent ester topical anesthetic?

Which of the following is/are true regarding topical anesthetics?

Local Anesthesia in Dental Hygiene Practice: an Introduction

Neurophysiology

Pharmacology of Local Anesthetic Agents

Pharmacology of Vasoconstrictors

Local Anesthetic Agents

Preanesthetic Assessment

Determining Drug Doses

Armamentariumsyringe Preparation

Anatomic Considerations for the Administration of Local Anesthesia

Basic Injection Techniques

Maxillary Anesthesia

Mandibular Anesthesia

Local Anesthesia for the Child and Adolescent

Local Anesthetic Complications

Legal Considerations and Risk Management

Filters

Exam 6: Topical Anesthetic Agents

Which of the following characteristics could contribute to the properties of an ideal intraoral topical anesthetic?

Which of the following properties are advantages of topical anesthetics being in a liquid form?

The over-the-counter product Anbesol with benzocaine can be safely used by all family members.

The most commonly found form of lidocaine is in base form because it is water soluble and can easily penetrate and be absorbed into the tissues.

Which of the following is true regarding Oraqix?

Topical anesthetics are available in concentrations ranging from 0.2% to 20%.Products available over the counter can have concentrations just as high as those used professional in the dental office.

What is the available concentration of Oraqix?

Which patients may be more susceptible to adverse effects to topical anesthetic agents?

Why does the local and systemic absorption of topical anesthetics increase the risk of toxicity?

Tetracaine hydrochloride has a rather slow onset of action;however,it can last approximately 45 minutes.

Prior to providing an injection,the topical agent should remain at the site of penetration for about 4 minutes.Anesthesia should be achieved to a depth of approximately 5-6 mm into the tissue.

What FDA Category does Oraqix fall into?

What is the main difference in the mechanism of action between topical anesthetics and injectable anesthetics?

Although topical anesthetics are generally regarded as safe,if used improperly they can produce adverse reactions that are fatal.

What has the combined lidocaine/prilocaine cream been approved and effectively used for?

List the methods for delivery of topical anesthetic drugs.

The onset of action for benzocaine is rapid.The duration of action for benzocaine is 5-15 minutes.

What is the name of a common ketone topical anesthetic?

What is the name of the most potent ester topical anesthetic?

Which of the following is/are true regarding topical anesthetics?

Local Anesthesia in Dental Hygiene Practice: an Introduction

Neurophysiology

Pharmacology of Local Anesthetic Agents

Pharmacology of Vasoconstrictors

Local Anesthetic Agents

Preanesthetic Assessment

Determining Drug Doses

Armamentariumsyringe Preparation

Anatomic Considerations for the Administration of Local Anesthesia

Basic Injection Techniques

Maxillary Anesthesia

Mandibular Anesthesia

Local Anesthesia for the Child and Adolescent

Local Anesthetic Complications

Legal Considerations and Risk Management

Filters