Mandibular Anaesthesia Flashcards
what are the LA techniques used
topical
infiltration
regional block
supplementary
what re the supplementary techniques
intraligamentary
intraosseus
intrapapillary
intra poket
what are the main branches Vc
lingual long buccal IAN mental incisive
what innervates the lower dental arch
IAN posterior teeth
incisive anterior
what are the nerves innervating surrounding tissues of lower dental arch
lingual nerve
long buccal
mental nerve
how long is short needle
25mm
how long is a long needle
35mm
block IAN =
lower teeth LA
block Lingual =
lingual soft tissue
block long buccal =
buccal tissues in post segments
block mental =
labial soft tissues
block incisive =
lower incisors but note cross over
what is IAN block aka
halstead approach
dircettechnique
where does IAN go
mandibular foramen in medial aspect of mandible
where does pterygomandibualr rathe run
from mylohyoid line mandible to pterygoid hamulus just medial to maxilla tuberosity
where aim LA for IAN block
close to IAN
before enter mandible
what are the borders of pterygoamanidublar space
lat - ramus med- medial petty muscle post - parotid ant - buccinator sup - lat ptery muscle
what is an appropriate LA for IAN block and lingual
lidocaine nor articaine
what is procedure of LA IANB
mouth wide open identify ptery raphe thumb coronoid notch inject needle touch bone 2.5cm withdraw need 1-2mm aspirate
why aspirate
reduces risk of inject into blood vessel
how much is injected of LA
1.5-2ml (1ml per min)
how do u know the LA has worked
numb lower lip
slight mental nerve
how long wait to see num
5 mins
how do u know lingual block is successful
tongue on that side is numb (ipsilateral)
when anaesthetise mental nerve what is affected
labial mucosa gingiva
but not teeth
what is anatsetices when do incisive nerve
teeth 1st premolar to contralateral incisors
when anesteiting lower incisors what is considered
bone thinner
crossover
when doing molar infiltration what to be cautious of
intravascular injection
parastheia
nerve trunk damage
what is more successful to use on lower molars by infiltration
articaine
