armamentarium of LA Flashcards
syringes
- must be durable and able to withstand repeated sterilisation without damage
- should be capable of accepting a wide variety of cartridges and needles of different manufacturers and permit related use
- syringes should be inexpensive, self-contained, lightweight and simple to use with one hand
syringes should provide for effective aspiration and be constructed so that blood may be easily observed in the cartridge
syringe
needle adapter
syringe barrel
piston and harpoon
finger grip
thumb ring
non disposable syringes
- breech-loading, metallic, cartridge-type, aspirating
- breech-loading, plastic, cartridge-type, aspirating
- breech-loading, metallic, cartridge type, self-aspirating
- pressure syringe for periodontal ligament injection
- jet injector (“needle-less” syringe)
other types of syringes
disposable syringes
safety syringes
Computer-controlled local anaesthetic delivery systems
metallic breech-loading aspirating syringe -advantages
visible cartridge
aspiration with one hand
autoclavable
rust resistant
long lasting with proper maintenance
metallic breech-loading pirating syringe
- weight (heavier than plastic syringe)
- syringe may be too big for small operators
- possibility of infection with improper care
what does the needle do
the needle delivers the anaesthetic agent from the cartridge to the surrounding tissue through its lumen
how do you decide whether to use an extra-short, short or long needle
the type of injection, how much tissue needs to be penetrated, and individual preference
needles used in dentistry
stainless steel
pre-sterilised
disposable
parts of a needle
shaft
hub
cartridge penetrating end
gauge
length
parts of the cartridge
the glass cylinder
cartridge labelling
silicone rubber stropper
diaphragm
aluminum cap
labelling on cartridge
lot number
expiration date
propriety name
generic name
volume
DIN number
manufacturer
