anaethesia Flashcards
main drug used
lidocaine
type of injection for a single tooth
supraperiosteal or local infiltration
location of supraperiosteal or local infiltration
mucobuccal fold above apex of tooth
why can you only do supraperiosteal or local infiltration on the maxillary teeth
because the cortical bone in the max is porous but it is dense in the mandible.
3 main techniques for mandibular field blocks
- IAN nerve block
- gow-gates
- vazirani-akinosi (closed mouth)
what must always be done before administering
- make sure mucosa is taut
- aspirate (so that you don’t penetrate blood vessel)
steps to administering the IAN block
- palpate external oblique ridge until you get to coronoid notch
- move medially until the internal oblique ridge
- move back laterally to make tissue taut
medial to lateral
- pterygomandibular raphe
- pterygotemporal depression
- internal oblique ridge
- external oblique ridge / coronoid notch
where is the needle inserted
pterygotemporal depression (triangular shaped)
where does the needle contact during gow-gates
neck of condyle just below insertion of temporalis m
when do you use gow-gates
when the IAN block doesnt work
when do you use vazirani-akinosi
when there is limited opening of the mouth or if you cant see the intraoral landmarks
where does the needle usually lie below during gow-gates
just below the mesiopalatal cusp of 2nd M
which n is also anesthatized with gow-gates
buccal n and auriculotemporal n
where is the needle insertion for vazirani-akinosis
lateral to maxillary tuberosity and medial to the coronoid process (closer to max though)
