Dental Hygiene Local Anesthesia | QUESTIONS
AND ANSWWRS | VERSION 2025/2026
Where mandibular nerve passes through in the skull - SOLUTION -Foramen Ovale
Where nasopalatine nerve passes through - SOLUTION -Incisive Foramen
Maxillary division of Trigeminal Nerve is - SOLUTION -Sensory
Nerve NOT associated with the mandibular nerve branch - SOLUTION -Infraorbital nerve
Teeth that PSA innervates - SOLUTION -1st, 2nd, and 3rd maxillary molars, but may not innervate MB
root of the maxillary 1st molar
What injection is needed to anesthetize linguals of max anteriors - SOLUTION -Nasopalatine
What injections are needed to anesthetize the entire palate on one side - SOLUTION -Greater
Palatine and Nasopalatine
How far do you insert the needle on an IANB? - SOLUTION -20-25 mm or 3/4 the length of the needle
What happens during depolarization? - SOLUTION -Sodium in and Potassium out
When do you aspirate? - SOLUTION -Right before anesthetic is to be deposited
Which local anesthetic is metabolized by pseudocholinesterase? - SOLUTION -Esters
Topical anesthetics are least effective on? - SOLUTION -Keratinized tissues
Which is true of topical anesthetics? - SOLUTION -No systemic problems
Which has the highest occurrence of allergic reactions - SOLUTION -Ester option; Benzocaine.
What is the significance of giving an amide anesthetic to a patient with cirrhosis? - SOLUTION -Due to
amide anesthetics being metabolized by the liver.
What is the landmark for the IANB injection? - SOLUTION -Coronoid notch
Psychogenic pain - SOLUTION -No organic base for the pain
Max epi dose for cardiac & normal pt - SOLUTION -Cardiac- .04mg
Normal- .2mg
What is trismus? - SOLUTION -Limited opening of mouth
Management of hematoma - SOLUTION -Cold compression and pressure to bleeding site
Management of trismus - SOLUTION -Heat therapy, saline rinses, asprin and jaw exercises
Hematoma can occur if needle penetrates into the pterygoid plexus of veins during which injection? -
SOLUTION -PSA
What needle should be used for infiltration? - SOLUTION -27g short
AND ANSWWRS | VERSION 2025/2026
Where mandibular nerve passes through in the skull - SOLUTION -Foramen Ovale
Where nasopalatine nerve passes through - SOLUTION -Incisive Foramen
Maxillary division of Trigeminal Nerve is - SOLUTION -Sensory
Nerve NOT associated with the mandibular nerve branch - SOLUTION -Infraorbital nerve
Teeth that PSA innervates - SOLUTION -1st, 2nd, and 3rd maxillary molars, but may not innervate MB
root of the maxillary 1st molar
What injection is needed to anesthetize linguals of max anteriors - SOLUTION -Nasopalatine
What injections are needed to anesthetize the entire palate on one side - SOLUTION -Greater
Palatine and Nasopalatine
How far do you insert the needle on an IANB? - SOLUTION -20-25 mm or 3/4 the length of the needle
What happens during depolarization? - SOLUTION -Sodium in and Potassium out
When do you aspirate? - SOLUTION -Right before anesthetic is to be deposited
Which local anesthetic is metabolized by pseudocholinesterase? - SOLUTION -Esters
Topical anesthetics are least effective on? - SOLUTION -Keratinized tissues
Which is true of topical anesthetics? - SOLUTION -No systemic problems
Which has the highest occurrence of allergic reactions - SOLUTION -Ester option; Benzocaine.
What is the significance of giving an amide anesthetic to a patient with cirrhosis? - SOLUTION -Due to
amide anesthetics being metabolized by the liver.
What is the landmark for the IANB injection? - SOLUTION -Coronoid notch
Psychogenic pain - SOLUTION -No organic base for the pain
Max epi dose for cardiac & normal pt - SOLUTION -Cardiac- .04mg
Normal- .2mg
What is trismus? - SOLUTION -Limited opening of mouth
Management of hematoma - SOLUTION -Cold compression and pressure to bleeding site
Management of trismus - SOLUTION -Heat therapy, saline rinses, asprin and jaw exercises
Hematoma can occur if needle penetrates into the pterygoid plexus of veins during which injection? -
SOLUTION -PSA
What needle should be used for infiltration? - SOLUTION -27g short
