

Local Anesthesia for Dental Hygienists
Review Questions

Course Introduction
This course introduces dental hygiene students to the theory and practice of local anesthesia administration in a dental setting. Students will explore the anatomy, pharmacology, and physiology relevant to local anesthesia, including types of anesthetic agents, their effects, indications, and contraindications. The course emphasizes safe and effective techniques for local and topical anesthetic administration, patient assessment, and management of potential complications and emergencies. Hands-on laboratory and clinical experiences are incorporated to develop competency and confidence in providing local anesthesia, preparing students to meet legal requirements and standards of care in dental hygiene practice.
Recommended Textbook
Local Anesthesia for the Dental Hygienist 1st Edition by Demetra D. Logothetis
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15 Chapters
509 Verified Questions
509 Flashcards
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Chapter 1: Local Anesthesia in Dental Hygiene Practice: an Introduction
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34 Verified Questions
34 Flashcards
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Sample Questions
Q1) The personal interpretation and response to the pain message is called what?
A) Pain
B) Pain control
C) Pain threshold
D) Pain reaction
Answer: D
Q2) Patients who are overly tired or stressed at the time of their dental appointment will generally demonstrate what kind of pain reaction threshold?
A) A lower pain reaction threshold, which means that they have a high tolerance for pain
B) A lower pain reaction threshold, which means that they have a low tolerance for pain
C) A higher pain reaction threshold, which means that they have a high tolerance for pain
D) None of the above
Answer: B
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Chapter 2: Neurophysiology
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) A local anesthetic is said to cause a loss of nociception.What does this mean?
A) A loss of pain
B) A loss of polarization
C) A loss of muscle mobility
D) A loss of cell membrane potential
Answer: A
Q2) During this stage,the second action potential is inhibited but not impossible should a larger stimulus be applied.
A)Polarization
B)Slow depolarization
C)Rapid depolarization
D)Repolarization
E)Relative refractory period
F)Absolute refractory period
Answer: E
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4
Chapter 3: Pharmacology of Local Anesthetic Agents
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) Dissociation constant refers to which of the following descriptions?
A) Determines the portion of administered anesthetic dose in the lipid-soluble state (RN)
B) Determines the onset of anesthetic action as the increase of molecules crossing the nerve membrane decreases the time of the anesthetic's onset
C) The pH at which 50% of the molecules exist in the lipid-soluble form and 50% in the water-soluble form
D) All of the above
Answer: D
Q2) Considering Sam's health history,what anesthetic drug may have been a better choice?
A) Procaine
B) Articaine with epinephrine
C) Lidocaine
D) Mepivacaine
Answer: B
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5

Chapter 4: Pharmacology of Vasoconstrictors
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) Why is there such a difference in the number of epinephrine-anesthesia cartridges that a healthy patient may have per dental appointment and that a patient with cardiovascular disease may have per dental appointment?
Q2) The heart rate is increased when the beta 1 and beta 2 receptors are affected by the systemic effects of adrenergic amines.
A)True
B)False
Q3) More concentrated formulations of epinephrine are safer for patients who are cardiovascularly compromised.More diluted formulations of epinephrine provide the greatest bleeding control.
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.
Q4) Which receptors have inhibitory actions from adrenergic drugs on smooth muscle?
A) Alpha receptors
B) Beta receptors
C) Alpha and beta receptors are equal
D) Adrenergic receptors
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Chapter 5: Local Anesthetic Agents
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) What is the solution that was added to the cartridge of local anesthetic to prevent bacterial growth?
A) Vasoconstrictor preservative
B) Sodium hydroxide
C) Sodium chloride
D) Methylparaben
Q2) Intermediate-action anesthetics are most commonly used for regular restorative dentistry and nonsurgical periodontal therapy.
A)True
B)False
Q3) Which amide anesthetic agent is metabolized in both the plasma and the liver?
A) Lidocaine
B) Mepivacaine
C) Prilocaine
D) Articaine
Q4) Among local anesthetics procaine has the highest percentage of protein binding and is the most lipid soluble.
A)True
B)False
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Chapter 6: Topical Anesthetic Agents
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) List common forms of topical anesthetics used in dentistry.
Q2) What is a drawback to the use of an unmetered topical anesthetic spray?
A) Cost
B) Not dose manageable
C) Cross-contamination
D) Site-specific
Q3) What is the name of a common ester topical anesthetic?
A) Lidocaine
B) Dyclonine hydrochloride
C) Prilocaine 2.5%
D) Benzocaine
Q4) The published maximum dosage recommendation for the topical anesthetic benzocaine is 200 mg.
A)True
B)False
Q5) Tetracaine hydrochloride has a rather slow onset of action; however,it can last approximately 45 minutes.
A)True
B)False
Q6) List the methods for delivery of topical anesthetic drugs.
Page 8
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Chapter 7: Preanesthetic Assessment
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33 Flashcards
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Sample Questions
Q1) Which of the following are best practices to use to reduce a dental patient's level of anxiety about dental treatment?
1) Consider appointment length and time of day.2. Administer adequate pain control during treatment and after the operation.3. Premedicate the patient for anxiety control.4. Telephone the patient after treatment
A) 1, 2, 4
B) 1, 2, 3, 4
C) 2, 3, 4
D) Some other combination
Q2) Best practices include which of the following?
1) Take preanesthetic vital signs to provide a standard of comparison in the event of an emergency.2. Take preanesthetic blood pressure readings to provide baseline information.3. Take preanesthetic blood pressure readings to determine whether to use a local anesthetic with a vasoconstrictor.4. Take preanesthetic vital signs to identify diagnosed or undiagnosed conditions.
A) 1, 2, 3, 4
B) 2, 3, 4
C) 1, 2
D) Some other combination
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Chapter 8: Determining Drug Doses
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) Using the information from the previous question,how many additional cartridges of 3% mepivacaine can the patient receive?
A) 0 cartridges of 3% mepivacaine; a different local anesthetic should be selected
B) 1.8 additional cartridges of 3% mepivacaine
C) 6.4 additional cartridges of 3% mepivacaine
D) 2.4 additional cartridges of 3% mepivacaine
Q2) What is the formula for calculating the healthy patient's MRD in mg?
Q3) Local anesthetic drug amounts are expressed in ratios.Vasoconstrictor drug amounts are expressed in percentages.
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.
Q4) What is the maximum dose of levonordefrin in a healthy patient?
A) 0.2 mg
B) 1.0 mg
C) 0.04 mg
D) Epinephrine should be used instead of levonordefrin.
Q5) What is the formula for converting the MRD to number of cartridges?
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Chapter 9: Armamentariumsyringe Preparation
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Sample Questions
Q1) Has a large window and a small window for visibility of cartridge
A)Syringe barrel
B)Harpoon
C)Finger grip
D)Thumb ring
E)Breech-loading syringe
F)Bevel
G)Shaft
H)Syringe adaptor
I)Gauge
J)Diaphragm
Q2) Because of the cost of the "needleless" injection,what is an alternative cost-effective anesthetic that will produce result similar to those of the needleless injection?
A) Computer-controlled anesthetic
B) Topical anesthetic
C) Articaine
D) All of the above
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Chapter 10: Anatomic Considerations for the
Administration of Local Anesthesia
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36 Verified Questions
36 Flashcards
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Sample Questions
Q1) The tongue
A)Anterior superior alveolar nerve
B)Middle superior alveolar nerve
C)Posterior superior alveolar nerve
D)Greater palatine nerve
E)Nasopalatine nerve
F)Lingual nerve
G)Mental nerve
H)Incisive nerve
Q2) Which nerve supplies innervation to the second and third maxillary molars?
A) ASA
B) MSA
C) PSA
D) Infraorbital
Q3) What is the name of the foramen located posterior to the maxillary central incisors?
A) Mental foramen
B) Infraorbital foramen
C) Incisive foramen
D) Lingual foramen
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Chapter 11: Basic Injection Techniques
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33 Flashcards
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Sample Questions
Q1) Local anesthesia is best administered by quadrants or sextants.It is an effective patient management strategy.
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.
Q2) Best practices to alleviate a patient's anxiety about local anesthetic include:
A) Show, tell, and explain the workings of the syringe and needle
B) Communication
C) Silence while administering the anesthetic
D) Music playing in the background
Q3) Successful delivery of local anesthetic agents depends on which of the following?
A) Effective patient management
B) Safe administration of the drug
C) Patient assessment
D) All of the above
Q4) List the specific local anesthetic information that should be included in the chart documentation.
Q5) Name the four anesthetic administration techniques.
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Chapter 12: Maxillary Nerve Anesthesia
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) Pulpal anesthesia of first and second maxillary premolars in a small percentage of the population
A)Anterior superior alveolar injection
B)Middle superior alveolar injection
C)Posterior superior alveolar injection
D)Infraorbital
E)Nasopalatine
F)Greater palatine
Q2) Pulpal anesthesia of the distobuccal root of the maxillary first molar
A)Anterior superior alveolar injection
B)Middle superior alveolar injection
C)Posterior superior alveolar injection
D)Infraorbital
E)Nasopalatine
F)Greater palatine
Q3) Which of the following are reasons for inadequate anesthesia?
A) Deposition of the solution superior to the apex of the tooth.
B) Dense bone covers the apices of the teeth as seen in children.
C) The apex of the tooth lies beneath the maxillary sinus.
D) All of the above.
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Chapter 13: Mandibular Nerve Anesthesia
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35 Verified Questions
35 Flashcards
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Sample Questions
Q1) What is the most commonly cited error contributing to missed IA blocks?
A) Injection being too low
B) Injection being too high
C) Inadequate aspiration
D) Incorrect fulcrum
Q2) When administering the IA block injection,what other nerve may inadvertently be anesthetized?
A) PSA
B) Facial nerve
C) Lingual nerve
D) Mandibular nerve
Q3) Where is the pterygomandibular fold located?
A) It extends in front of the most distal mandibular molar and retromolar pad.
B) It runs vertically to the posterior border of the mandible.
C) It turns superior to the junction of hard and soft palates.
D) It separates the buccal mucosa from the palatal mucosa.
Q4) With the PDL injection,multirooted teeth require an injection for each root.
A)True
B)False
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Chapter 14: Local Anesthetic Complications
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) Cardiovascular signs of toxicity of local anesthetic solution include which of the following?
A) Myocardial stimulation
B) Cardiac dysrhythmias
C) Cardiotoxicity in pregnancy
D) b and c
Q2) Recommended treatment of allergic reactions includes which of the following?
A) 25 to 50 mg adult dose Benadryl for mild cutaneous reactions
B) 1:1000 epinephrine for more serious reactions
C) 60 mg methylprednisolone for severe allergic reactions
D) a and b
E) All of the above
Q3) The preanesthetic patient assessment is the most important measure the dental hygienist can complete to prevent an allergic reaction.Patients who report they are susceptible to asthma,hay fever,and allergies to foods have an increased potential to develop an allergic response to medications.
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.
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Chapter 15: Legal Considerations and Risk Management
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Sample Questions
Q1) A dental hygienist may be charged with malpractice if he/she induces harm to the patient or if a breach of duty exists.
A)True
B)False
Q2) Any refusal of treatment by the patient and a brief statement documenting the discussion of risks associated with refusal of treatment should be documented in the patient record.
A)True
B)False
Q3) Which of the following legal issues pertain to the dental hygienist?
A) Contractual obligation to the patient
B) Assumption of own legal responsibility
C) Accountability if the patient's periodontal status declines
D) All of the above
Q4) Any dental history regarding a patient's psychological state as related to injections or nervousness is subjective and should not be included in dental notes.
A)True
B)False
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