Infiltration Anesthetic for Dental Hygiene
(SC) Questions and Answers Latest
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What is the primary goal of infiltration anesthesia in dental hygiene?
A. To anesthetize the entire nerve trunk
✔✔ B. To numb a small, localized area near the injection site
C. To prevent muscle movement
D. To sedate the entire quadrant
Which area is typically targeted with infiltration anesthesia?
A. Mandibular foramen
B. Mental foramen
✔✔ C. Apices of the maxillary teeth
D. Coronoid notch
What depth of penetration is typically required for infiltration anesthesia?
✔✔ A. Shallow, usually 3–6 mm
B. Deep, over 20 mm
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,C. Moderate, about 10–15 mm
D. No penetration is needed
Why is infiltration more successful in the maxilla than in the mandible?
✔✔ A. Maxillary bone is more porous
B. Mandibular nerves are less active
C. There are more blood vessels in the maxilla
D. The maxilla has fewer nerve endings
What is the recommended needle gauge for a maxillary infiltration?
✔✔ A. 27- or 30-gauge short
B. 25-gauge long
C. 18-gauge blunt
D. 21-gauge spinal
Which type of anesthetic injection is most appropriate for one isolated maxillary tooth?
A. PSA nerve block
✔✔ B. Infiltration anesthesia
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,C. Gow-Gates injection
D. Nasopalatine block
How should the bevel of the needle be oriented during infiltration?
✔✔ A. Toward the bone
B. Away from the root
C. Facing upward
D. Parallel to the gingiva
What landmark is most helpful in locating the injection site for a maxillary infiltration?
✔✔ A. Mucobuccal fold above the target tooth
B. Mental foramen
C. Retromolar pad
D. Coronoid notch
What volume of solution is typically used for a single-tooth maxillary infiltration?
✔✔ A. 0.6 to 1.0 mL
B. 2.5 mL
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, C. 3.5 mL
D. Less than 0.2 mL
Which of the following is the most common cause of failed maxillary infiltration?
A. Faulty cartridge
✔✔ B. Poor technique or injection too far from apex
C. Allergic reaction
D. Inadequate aspiration
What is the expected onset of anesthesia for an infiltration injection?
A. 5–10 minutes
B. Immediate
✔✔ C. 2–3 minutes
D. Over 10 minutes
Which local anesthetic is most often used for infiltration?
A. Procaine
✔✔ B. Lidocaine with epinephrine
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(SC) Questions and Answers Latest
Version Already Passed
What is the primary goal of infiltration anesthesia in dental hygiene?
A. To anesthetize the entire nerve trunk
✔✔ B. To numb a small, localized area near the injection site
C. To prevent muscle movement
D. To sedate the entire quadrant
Which area is typically targeted with infiltration anesthesia?
A. Mandibular foramen
B. Mental foramen
✔✔ C. Apices of the maxillary teeth
D. Coronoid notch
What depth of penetration is typically required for infiltration anesthesia?
✔✔ A. Shallow, usually 3–6 mm
B. Deep, over 20 mm
1
,C. Moderate, about 10–15 mm
D. No penetration is needed
Why is infiltration more successful in the maxilla than in the mandible?
✔✔ A. Maxillary bone is more porous
B. Mandibular nerves are less active
C. There are more blood vessels in the maxilla
D. The maxilla has fewer nerve endings
What is the recommended needle gauge for a maxillary infiltration?
✔✔ A. 27- or 30-gauge short
B. 25-gauge long
C. 18-gauge blunt
D. 21-gauge spinal
Which type of anesthetic injection is most appropriate for one isolated maxillary tooth?
A. PSA nerve block
✔✔ B. Infiltration anesthesia
2
,C. Gow-Gates injection
D. Nasopalatine block
How should the bevel of the needle be oriented during infiltration?
✔✔ A. Toward the bone
B. Away from the root
C. Facing upward
D. Parallel to the gingiva
What landmark is most helpful in locating the injection site for a maxillary infiltration?
✔✔ A. Mucobuccal fold above the target tooth
B. Mental foramen
C. Retromolar pad
D. Coronoid notch
What volume of solution is typically used for a single-tooth maxillary infiltration?
✔✔ A. 0.6 to 1.0 mL
B. 2.5 mL
3
, C. 3.5 mL
D. Less than 0.2 mL
Which of the following is the most common cause of failed maxillary infiltration?
A. Faulty cartridge
✔✔ B. Poor technique or injection too far from apex
C. Allergic reaction
D. Inadequate aspiration
What is the expected onset of anesthesia for an infiltration injection?
A. 5–10 minutes
B. Immediate
✔✔ C. 2–3 minutes
D. Over 10 minutes
Which local anesthetic is most often used for infiltration?
A. Procaine
✔✔ B. Lidocaine with epinephrine
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