Local Anesthesia for the Dental
Hygienist Exam A+ Pass 100%
Solved Questions And All Correct
Answers 2025-2026 New Update
VERIFIED
Where is the recommended injection site or needle insertion point for the
anterior superior alveolar local anesthetic block?
Maxillary mucobuccal fold superior to the apex of the maxillary canine
What is the USUAL approximate depth of needle insertion for the anterior
superior alveolar local anesthetic block?
5 millimeters
What is the recommended injection site or needle insertion point for the
infraorbital block?
Height of the maxillary mucobuccal fold of the maxillary first premolar
After receiving an infraorbital local anesthetic block, the patient reports slight
numbness of the lower eyelid. What should the clinician do next?
Explain to the patient that this is a usual reaction to the block
Where is the greater palatine foramen usually located?
Approximately 10 mm medial and directly superior to the palatal gingival margin
Pressure anesthesia to control patient discomfort upon injection with the
needle can be used during which of the following local anesthetic blocks?
Greater palatine and nasopalatine local anesthetic blocks
Which of the following supplemental injections is RARELY used within the
maxillary arch before nonsurgical periodontal therapy?
Periodontal ligament injection
Which of the following supplemental injections are also intraosseous
injections?
,Both the intraseptal and periodontal ligament injections
What is the injection site or needle insertion point for an intraseptal injection
within the maxillary arch?
Center to the interdental papilla
Which of the following supplemental injections increase hemostasis when
used with a higher level of vasoconstrictor upon instrumenting within the
maxillary arch?
Intraseptal injection
Which of the following supplemental injections within the maxillary arch is
palpated before administration to ensure soft tissue entry before the needle is
inserted?
Supraperiosteal injection
What is the approximate needle insertion depth into soft tissue in MOST cases
for the inferior alveolar local anesthetic block?
20 millimeters
The mandibular nerve or third division is a branch of which cranial nerve?
V (Roman numeral 5)
The posterior mandibular sextant is denser and less porous than the
mandibular anterior sextant, which allows for MORE clinically effective molar
anesthesia.
The statement is correct, but the reason is NOT.
Which injection is USUALLY administered along with the inferior alveolar
block to provide complete anesthesia of a mandibular quadrant on a patient
before nonsurgical periodontal therapy WITHOUT any overlapping coverage?
Buccal block
What potent drug used for pain control was derived from opium?
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?
D. It was addictive
Injectable amides are recommended over esters because there is:
A and B (Less risk of allergic reactions and Increased potency)
What drug did Horace Wells first introduce into dentistry for pain control?
Nitrous Oxide
, What is the most popular local anesthetic used in the US today?
Lidocaine
What is the definition of pain threshold?
The point at which a sensation starts to be painful and discomfort results
What is pain perception?
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?
The sensation of discomfort that the patient feels, ranging from mild to severe
What is pain reaction?
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?
D. Positive attitude
What theory helps dental hygienists understand the relationship between
human-need fulfillment and human behavior?
Human-needs theory
What is the definition of stress?
A physical and emotional response to a particular situation
Which of the following may negatively influence the pain reaction threshold?
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.
False
Which of the following is the personal interpretation and response to the pain
message, and is highly variable among individuals?
Pain reaction
In what year was the first local anesthetic introduced?
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.
Both statements are NOT correct.
Hygienist Exam A+ Pass 100%
Solved Questions And All Correct
Answers 2025-2026 New Update
VERIFIED
Where is the recommended injection site or needle insertion point for the
anterior superior alveolar local anesthetic block?
Maxillary mucobuccal fold superior to the apex of the maxillary canine
What is the USUAL approximate depth of needle insertion for the anterior
superior alveolar local anesthetic block?
5 millimeters
What is the recommended injection site or needle insertion point for the
infraorbital block?
Height of the maxillary mucobuccal fold of the maxillary first premolar
After receiving an infraorbital local anesthetic block, the patient reports slight
numbness of the lower eyelid. What should the clinician do next?
Explain to the patient that this is a usual reaction to the block
Where is the greater palatine foramen usually located?
Approximately 10 mm medial and directly superior to the palatal gingival margin
Pressure anesthesia to control patient discomfort upon injection with the
needle can be used during which of the following local anesthetic blocks?
Greater palatine and nasopalatine local anesthetic blocks
Which of the following supplemental injections is RARELY used within the
maxillary arch before nonsurgical periodontal therapy?
Periodontal ligament injection
Which of the following supplemental injections are also intraosseous
injections?
,Both the intraseptal and periodontal ligament injections
What is the injection site or needle insertion point for an intraseptal injection
within the maxillary arch?
Center to the interdental papilla
Which of the following supplemental injections increase hemostasis when
used with a higher level of vasoconstrictor upon instrumenting within the
maxillary arch?
Intraseptal injection
Which of the following supplemental injections within the maxillary arch is
palpated before administration to ensure soft tissue entry before the needle is
inserted?
Supraperiosteal injection
What is the approximate needle insertion depth into soft tissue in MOST cases
for the inferior alveolar local anesthetic block?
20 millimeters
The mandibular nerve or third division is a branch of which cranial nerve?
V (Roman numeral 5)
The posterior mandibular sextant is denser and less porous than the
mandibular anterior sextant, which allows for MORE clinically effective molar
anesthesia.
The statement is correct, but the reason is NOT.
Which injection is USUALLY administered along with the inferior alveolar
block to provide complete anesthesia of a mandibular quadrant on a patient
before nonsurgical periodontal therapy WITHOUT any overlapping coverage?
Buccal block
What potent drug used for pain control was derived from opium?
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?
D. It was addictive
Injectable amides are recommended over esters because there is:
A and B (Less risk of allergic reactions and Increased potency)
What drug did Horace Wells first introduce into dentistry for pain control?
Nitrous Oxide
, What is the most popular local anesthetic used in the US today?
Lidocaine
What is the definition of pain threshold?
The point at which a sensation starts to be painful and discomfort results
What is pain perception?
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?
The sensation of discomfort that the patient feels, ranging from mild to severe
What is pain reaction?
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?
D. Positive attitude
What theory helps dental hygienists understand the relationship between
human-need fulfillment and human behavior?
Human-needs theory
What is the definition of stress?
A physical and emotional response to a particular situation
Which of the following may negatively influence the pain reaction threshold?
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.
False
Which of the following is the personal interpretation and response to the pain
message, and is highly variable among individuals?
Pain reaction
In what year was the first local anesthetic introduced?
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.
Both statements are NOT correct.
