Module 4 Flashcards
What is the only branch of the Trigeminal Nerve that has motor and sensory function?
Mandibular (V3)
The Mandibular branch of the Trigeminal Nerve exits through the foramen ______?
ovale
What part of the Mandibular Nerve feeds the Inferior Alveolar, Mental, Incisive, and Lingual Nerves?
Posterior Trunk
What nerve joins up with the lingual nerve?
Chorda Tympani
The Lingual nerve gives sensory function to the ______ of the tongue, mucosa of the ______ and to all mandibular ______ gingiva?
ant. 2/3
floor of mouth
lingual
The Mandibular Nerve descends down the _______ side of the ______?
medial
ramus
Before the mandibular nerve enters the mandibular canal it breaks off a piece that becomes the ________ nerve?
mylohyoid
What is the mandibular nerve called once it enters the mandibular canal?
Inferior Alveolar Nerve
What is the Inferior Alveolar nerve called once it exits the Mental Foramen?
Mental Nerve
What is the part of the IA nerve called that remains inside the bone but is PAST the mental foramen upto the midline?
Incisive Nerve
The Inferior Alveolar Injection anesthetizes what 4 nerves?
IA
Mental
Incisive
Lingual
What is the failure rate of the IA injection? Why?
15-20%
due to anatomy, trauma, or just a bad day
What are the 5 landmarks when giving an IA injection?
Lingula Pterygomandibular Raphe Coronoid Notch Angle of Mandible Occlusal plane of MN post. teeth
You want to insert the needle at what location in relation to the coronoid notch when giving an IA injection?
at the height of the notch
Where should the barrel of the syringe lie while giving an IA injection?
over the premolars on the opposite side
in corner of mouth
The needle should be ______ to the occlusal plane while giving an IA injection?
parallel
How deep should the needle penetrate for an IA injection?
20-25 mm
2/3 of a long needle, 4/5 of a short needle
The insertion point for a Long Buccal Injection is _____ and ______ to the most distal molar?
distal
buccal
What structures are anesthetized during a Long Buccal Injection?
Buccal tissue of the 1st, 2nd, 3rd molars
What structures are anesthetized during an IA injection?
Everything up to the midline EXCEPT the buccal tissues of the 1st, 2nd, 3rd molars
Ant. 2/3 of tongue
floor of mouth
The insertion of the IA injection is about __-___mm above the occlusal plane on the _____ side of the mandibular ramus?
6-10
lingual
What structures does a Mental Nerve Injection anesthetize?
Buccal Tissue anterior to the mental foramen
(2nd premolar forward to midline)
Skin of lower lip and chin
What is the insertion point of an Mental Nerve Injection?
Mucobuccal fold between the premolars
sometimes around canine area
What is the insertion point of an Incisive Nerve Injection?
Mental Foramen
What structures does an incisive Nerve Injection anesthetize?
Pulps and buccal soft tissue of MN centrals through premolars
Skin of lower lip and chin
