Local Infiltration - Maxillary Flashcards
What is local infiltration?
Technically small terminal nerve endings are anaesthetised with LA
When would you use a local infiltration?
If you wanted to numb the maxillary teeth specifically
What teeth does the infiltration technique target?
Pulpal anaesthesia in maxillary teeth, mainly molars
What are the topical anaesthetics you could use, usually at patient request?
Lidocaine
What is the needle gauge is usually used?
27 or 30 gauge
What are you aiming for maxillary injection?
Mucobuccal fold, crown of tooth, root contour
Target Alex of tooth to be anaesthetised
With local infiltration, do you want to hit bone?
No
What is the average volume for local infiltration?
1/2 cartridge over 30 secs
1.1 mL
How long do you wait before commencing treatment?
3-5 minutes
Why can we use a local infiltration if the upper jaw?
The outer covering of the upper teeth is thin and it can infiltrate
What teeth are hard to anaesthetise?
Caine, roots can be angled
When anaethistising anterior maxillary teeth for pulpal and gingival numbing, what nerves are involved?
Anterior superior alveolar
When extracting an anterior tooth, what nerves need to be numbed?
Nasopalatine and superior anterior alveolar on same side (will numb to the palatine septum)
What teeth need little volume to numb?
Premolars
When numbing molars, what 2 sites would you inject?
Mesially and distally
What can obstruct the root apices of molars?
Zygomatic arch as it arises from the maxillary
To see the apices easier to access of molars, what can you do?
Get the patient to swing jaw towards the side of injection
Injecting into the greater palatine nerve, what is numbed?
3rd molar to around the second premolar
To make a palatal injection more comfortable, what can be done?
Inject into the papilla above the maxillary bone
Couple mL
