Local Anaesthetic Flashcards
How does La work on a cellular level?
La molecules bind to the H-gate which keep the sodium channel in refractory conformation.
What affects the proportion of ions in the cell?
pH of the region.
The pKa.
Why may an IDB not work?
Poor technique.
Ectopic mandibular foramen.
Accessory nerve supply.
What are the branches of the trigeminal nerve?
V1 - Opthalmic (Sensory)
V2 - Maxillary (Sensory)
V3 - Mandibular (Sensory and motor).
What are the parasympathetic ganglia that is associated with the trigeminalnerve?
Cillary
Otic
Pterygopalatine
Submandibular
What are the branches of the opthalmic nerve?
Nasocillary
Frontal
Lacrimal
What are the branches of the Maxillary nerve?
Greater and lesser palatine.
Superior alveolar nerve.
What are the branches of the mandibular nerve?
Long buccal nerve
Inferior alveolar nerve
What anaesthetises the maxillary anteriors?
Anterior superior alveolar nerve.
Nasopalatine Nerve.
What anaesthetises the maxillary premolars?
Middle superior alveolar nerve.
What anaesthetises the maxillary molars?
Posterior superior alveolar nerve
What anaesthetises the mandibular incisors?
Incisive and mental nerve
What anaesthetises the mandibular premolars and molars?
Inferior alveolar and long buccal nerve
What are the advantages of LA?
Simple
Easily steralised and disposed of.
Single operator.
Rapid onset.
Inexpensive.
Reduced bleeding.
Safe
Goof operating time.
How would you write the administration of lidocaine?
-ml 2% Lidocaine 1:80,000 epinephrine given as ___
