1|Page
LOCAL ANESTHESIA FOR THE DENTAL HYGIENIST
EXAM(ACTUAL EXAM) WITH QUESTIONS WITH VERY
ELABORATED ANSWERS CORRECTLY WELL
ORGANIZED LATEST ALREADY GRADED A+
What potent drug used for pain control was derived from opium? -
(answers)Morphine
All of the following are reasons why procaine was NOT as desirable as lidocaine
for pain control EXCEPT one. Which one is the EXCEPTION? - (answers)D. It was
addictive
Injectable amides are recommended over esters because there is: - (answers)A
and B (Less risk of allergic reactions and Increased potency)
What drug did Horace Wells first introduce into dentistry for pain control? -
(answers)Nitrous Oxide
What is the most popular local anesthetic used in the US today? -
(answers)Lidocaine
What is the definition of pain threshold? - (answers)The point at which a
sensation starts to be painful and discomfort results
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What is pain perception? - (answers)A neurologic experience of pain related to
the process of receiving pain stimuli and transmission of this pain to the brain that
differs little among individuals
what is pain? - (answers)The sensation of discomfort that the patient feels,
ranging from mild to severe
What is pain reaction? - (answers)Personal interpretation and responses to the
pain message that is highly variable among individuals
Pain can be influenced by all of the following EXCEPT one. Which one is the
EXCEPTION? - (answers)D. Positive attitude
What theory helps dental hygienists understand the relationship between human-
need fulfillment and human behavior? - (answers)Human-needs theory
What is the definition of stress? - (answers)A physical and emotional response to
a particular situation
Which of the following may negatively influence the pain reaction threshold? -
(answers)Fear
If a patient has a high pain threshold, he or she will experience more intense pain
than a patient who has a low pain threshold. - (answers)False
,3|Page
Which of the following is the personal interpretation and response to the pain
message, and is highly variable among individuals? - (answers)Pain reaction
In what year was the first local anesthetic introduced? - (answers)1884
It is best to schedule apprehensive patients for long appointments to complete as
much work as possible, and it is best to schedule these appointments in the
morning. - (answers)Both statements are NOT correct.
What percentage of patients has reported to have had onset of dental anxiety by
adolescence? - (answers)50-85%
Which of the following are signs of moderate anxiety? - (answers)B and C only
(History of frequently missed appointments and History of emergency
appointments only)
What is the best method of managing an anxious patient? - (answers)Prevention
A stimulus is an electrical message from one part of the body to another. An
impulse is an environmental change in an excitable tissue. - (answers)e first
statement is correct, but the second is NOT.
Which fibers are the principle fibers in the transmission of sharp, bright dental
pain? - (answers)Aδ fibers
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Local anesthetics work by: - (answers)Penetrating the nerve to inhibit Na+ influx
Local anesthetics mostly have their effect on myelinated nerves in which way? -
(answers)Mostly at the node of Ranvier
The minimal threshold stimulus required to excite a C fiber will also be sufficient
to stimulate an A fiber. - (answers)False
When energy for conduction is derived from the nerve cell membrane itself and is
no longer dependent on the stimulus for continuance, the conduction is
considered to be: - (answers)Self-propagating
The absolute refractory period occurs during the fraction of a millisecond when a
nerve fiber can be excited only by a much stronger stimulus than the initial
stimulus. - (answers)False
Saltatory conduction refers to: - (answers)Rapid transmission of nerve impulses
along a myelinated nerve fiber
What is the type of glial cell located in the peripheral nervous system? -
(answers)Schwann
Myelin (lipoprotein sheath) is composed of: - (answers)Approximately 75% lipid,
20% protein, and 5% carbohydrate
LOCAL ANESTHESIA FOR THE DENTAL HYGIENIST
EXAM(ACTUAL EXAM) WITH QUESTIONS WITH VERY
ELABORATED ANSWERS CORRECTLY WELL
ORGANIZED LATEST ALREADY GRADED A+
What potent drug used for pain control was derived from opium? -
(answers)Morphine
All of the following are reasons why procaine was NOT as desirable as lidocaine
for pain control EXCEPT one. Which one is the EXCEPTION? - (answers)D. It was
addictive
Injectable amides are recommended over esters because there is: - (answers)A
and B (Less risk of allergic reactions and Increased potency)
What drug did Horace Wells first introduce into dentistry for pain control? -
(answers)Nitrous Oxide
What is the most popular local anesthetic used in the US today? -
(answers)Lidocaine
What is the definition of pain threshold? - (answers)The point at which a
sensation starts to be painful and discomfort results
,2|Page
What is pain perception? - (answers)A neurologic experience of pain related to
the process of receiving pain stimuli and transmission of this pain to the brain that
differs little among individuals
what is pain? - (answers)The sensation of discomfort that the patient feels,
ranging from mild to severe
What is pain reaction? - (answers)Personal interpretation and responses to the
pain message that is highly variable among individuals
Pain can be influenced by all of the following EXCEPT one. Which one is the
EXCEPTION? - (answers)D. Positive attitude
What theory helps dental hygienists understand the relationship between human-
need fulfillment and human behavior? - (answers)Human-needs theory
What is the definition of stress? - (answers)A physical and emotional response to
a particular situation
Which of the following may negatively influence the pain reaction threshold? -
(answers)Fear
If a patient has a high pain threshold, he or she will experience more intense pain
than a patient who has a low pain threshold. - (answers)False
,3|Page
Which of the following is the personal interpretation and response to the pain
message, and is highly variable among individuals? - (answers)Pain reaction
In what year was the first local anesthetic introduced? - (answers)1884
It is best to schedule apprehensive patients for long appointments to complete as
much work as possible, and it is best to schedule these appointments in the
morning. - (answers)Both statements are NOT correct.
What percentage of patients has reported to have had onset of dental anxiety by
adolescence? - (answers)50-85%
Which of the following are signs of moderate anxiety? - (answers)B and C only
(History of frequently missed appointments and History of emergency
appointments only)
What is the best method of managing an anxious patient? - (answers)Prevention
A stimulus is an electrical message from one part of the body to another. An
impulse is an environmental change in an excitable tissue. - (answers)e first
statement is correct, but the second is NOT.
Which fibers are the principle fibers in the transmission of sharp, bright dental
pain? - (answers)Aδ fibers
, 4|Page
Local anesthetics work by: - (answers)Penetrating the nerve to inhibit Na+ influx
Local anesthetics mostly have their effect on myelinated nerves in which way? -
(answers)Mostly at the node of Ranvier
The minimal threshold stimulus required to excite a C fiber will also be sufficient
to stimulate an A fiber. - (answers)False
When energy for conduction is derived from the nerve cell membrane itself and is
no longer dependent on the stimulus for continuance, the conduction is
considered to be: - (answers)Self-propagating
The absolute refractory period occurs during the fraction of a millisecond when a
nerve fiber can be excited only by a much stronger stimulus than the initial
stimulus. - (answers)False
Saltatory conduction refers to: - (answers)Rapid transmission of nerve impulses
along a myelinated nerve fiber
What is the type of glial cell located in the peripheral nervous system? -
(answers)Schwann
Myelin (lipoprotein sheath) is composed of: - (answers)Approximately 75% lipid,
20% protein, and 5% carbohydrate
