Local Anaesthetic Flashcards
What are the two types of LA solution most commonly used in DDH?
2% lidocaine
4% articiane
How much lidocaine hydrochloride (in mg) is found in a 2.2ml cartridge?
44mg
How much articaine (in mg) is found in a 2.2ml cartridge?
88mg
What is the vasoconstrictor used in both lidocaine and articaine LA solutions?
Adrenaline
In what patients should adrenaline not be used as part of the LA solution?
In patients who have unstable angina or severe cardiac arrhythmias
what component of an LA cartridge is an individual most likely to have an allergy to?
The preservative
What is the trade name for lidocaine hydrochloride?
Lignospan special
What is the trade name for articaine?
Septanest
Why does articiane have a greater ability to diffuse through bone than lidocaine?
Because articaine contains a thiopene ring in its structure
When giving an infiltration, where is the target?
Tooth root apex
What length of needle should ideally be used to give infiltrations?
Short needle (25mm)
Why may areas of the mandible require articaine infiltration over lidocaine infiltration?
Due to areas of thick cortical bone, which lidocaine cannot penetrate
how much should you withdraw the needle in order to aspirate?
1mm
What is the rate of injecting LA solution?
1ml/minute
In the maxilla, what nerves can you anaesthetise by block injection?
The greater palatine nerve and nasopalatine nerve
