Maxillary Anaesthesia Flashcards
what does the choice of technique depede on
pt
nature, location, duration
LA drug
what are some max div of trigeminal nerve branch
infraorbital
ant sup alv nerve
middle sup alv nerve
post sup alv nerve
what is the innervation for the max 3-3
ant sup alv nerve
what is the innervation of max 4,5 and part of 6
middle sup alv nerve
what innervates the max post teeth
post sup alv nerve
what si the awkward not innervation
messy buccal root of 1st molar - middle sup alv nerve
what is the inv of palate
ant to post
- incisive branch nasopalatine nerve
- greater palatine nerve
- lesser palatine nerve
what is the innervation of the max gingiva ant to post
ant sup alv
middle sup alv
post sup alv
what enervates the max lip
infraordibital nerve
what are some LA techniques
topical
infiltration
regional
supplementary
what are some supplementary thniques
intraosseous intraligamentary intrapapillary intra-pocket computer controlled
what are some uses of topicalLA
aid to pain free injection
very minor surgery
abscess incision
rubber dam clamps
what are some technique for topical LA
solutions
sprays
pastes/gels
refrigeration - ethyl chloride
what are two main LA techniques used
infiltration
regional block
what are some main things about infiltration
easy safe low risk intravascular administration low risk of nerve injury local haemostasis local diffusion required acts on local nerve endings
what awesome main facts about regional blcok
can be iffuclt less safe higher risk of IV admin high risk of nerve injury acts on nerve source widespread effect
what is infiltration
depo LA solution close to or in target tissue
what is efficacy governed by
the ability of the solution to reach the target
how long is short needle
25mm
when is infiltration ok
thin porous bone
when can infiltration be difficult
thicker bone due to zygomatic process
divergent roots
when can infiltration not be done
very dense outer cortical mine - article may work
where is infiltration mostly used
maxillary
what is infiltration useful for what anaesteisa
pulp - upper teeth
soft tissue - buccal or palatal
when can infiltration be difficult
pulpal anaesthesia 1st molars
what si pt position for infiltration
operator preference/ pt comfort
supine or upright
what is the procedure for infiltraton
identify site injection area dry site aplly gel give injection
what si the bevel to bone
face bone approx 45 degrees to bone
what is aspiration
reduce risk of intravascular injection
- fail LA
- systemic side effects
how dos do aspiration
inc pressure in cartridge then dec
suction draws what is at the needle tip into cartridge - if blood = vessel
what are some things need for pain free injections
topical LA
tought tissue - quick, precise
slow injection
2 stage injections for user anteriors
when is buccal/labial infiltrations needed
simple restorations
can be pain free
when is palatal + needed
often uncountable as tight - pressure
tooth extraction
if fail buccal/labial anaastehsi
