W6: LA and Trigeminal Nerve Flashcards
What does the trigeminal nerve come from and what does it provide?
sensation to face
muscles to eat
Describe the pathway of the maxillary branch of the trigeminal nerve (CNV)
round hole
P fossa
Eye hole (orbit)
What does the maxillary nerve do?
need it to feel different senses for the
- upper teeth
- upper gums & mucosa
- paranasal sinuses
- nose cavity
- skin of 1/3 of the face
Label branches of the Maxillary nerve
- blue= passage way
- other colours= branches
What do the palantine branches innervate?
https://www.youtube.com/watch?v=5A37MZ29djw
You want to numb the upper anterior and posterior hard palate, what nerves do you block?
Fill in the blanks and labels
naso= think nose which is front thus anterior palate
Which nerve innervates the maxillary molars, buccal gingiva and mucosa?
Which nerve supplies premolars?
Which nerve arises from the infraorbital nerve in the infraorbital canal and what does it supply?
Which nerves supply buccal vs palatal of maxillary teeth.
What goes numb when you block nerves related to vestibular vs lingual vs tooth?
What is an infiltration injection?
inject on root of one of the tooth and it will lead to 2 tooth being numbed
You want to do an anterior maxillary filling vs exo… what nerves willl you infiltrate?
filling= ASA labial
exo= need palatal
You want to do a maxillary premolar filling vs exo… what nerves willl you infiltrate?
filling: MSA
exo: need to numb greater palatine
You want to do a maxillary molar filling vs exo… what nerves willl you infiltrate?
filling= PSA
exo: GPN
Which branch of the CNV is mixed?
Name the following innervations of the mandibular nerve:
6 sensory
2 grps of motor
Label the branches of the mandibular branch of CNV
unbranched: 2 nerves
anterior: ear, tongue, IAN, M muscle
post: masticatory M, Long sensory buccal
Which division of the mandibular nerve is mostly motor exept for one sensory branch?
Name its branches….
Which division of the mandibular nerve is mostly sensory?
Name it’s branches…
What are the posterior division of the mandibular nerve (IAN branches)
What nerve supplies the anterior 2/3 of the tongue?
– General sensation from mucosa (pain, temp, etc) – Lingual Nerve (CN V-III)
– Special sensation taste buds/taste – Chorda Tympani (CN VII) (except vallate taste buds)
What nerve supplies the posterioe 1/3 of the tongue?
– General sensation – Glossopharyngeal and Vagus Nerve
– Taste of Vallate Papilla: Glossopharyngeal Nerve
Which nerve supplies General sensation from mucosa (pain, temp, etc) for anterior 2/3 of the tongue?
Lingual nerve
Which nerve provides Special sensation taste buds/taste to anterior 2/3 of the tongue?
CT
What does the Glossopharyngeal nerve supply?
What does the vugus supply for the tongue?
Which nerve innervates the mandibular..
a) molar, PM, anterior teeth?
b) buccal gums of molars, PM and anteriors
c) lingual gums
why are mandibular infiltrations only usually used from the 5’s and anterior?
thick bone
Where do you insert the needle for an IAN block?
what are the landmarks surrounding this ‘point where you inject’?
Aiming for the pterygomandibular space (a cleft between the pterygoid musculature and the ramus of the mandible) will end up numbing what?
What structures does the Anterior Superior Alveolar Nerve innervate?
List the structures anaesthetised by a maxillary infiltration adjacent to tooth 17
List the structures anaesthetised by a maxillary infiltration adjacent to tooth 17
What would be your anaesthetic approach prior to doing a filling on tooth 37?
IAN
Draw a schematic of the maxillary division of trigeminal
- Draw a schematic of the mandibular division of trigeminal
