Local Anaesthesia of the maxillary tissues Flashcards
Which nerve are the maxillary teeth supplied by?
The anterior, middle and posterior part of the mandibular division of the trigeminal nerve
Which nerve are the soft tissues of the palatal surfaces supplied by?
long sphenoid palatine nerve and the great palatine nerves
Why does the LA need to be administered slowly?
- For the patients comfort
2. So that the solution pools around the apical tissue
What do you need to do while slowly administrating the LA?
Describe to the patient what they are feeling (gene stretching and pressure) and why you are administrating the LA so slowly
When is a papillary injection given?
During periodontal procedures and the papilla both mesial and distal to the tooth to be treated is anaesthetised
Which nerve is anaesthetised if palatal soft tissue needs to be injected
The greater palatine or long sphenoid palatine nerve
Why can we carry out a buccal infiltration when anaesthetising maxillary nerves?
As the bone overlying these nerves Is relatively thin
When giving a buccal infiltration how should we orientate the needle?
You need to line the needle up with the long axis of the tooth you want to anaesthetise and inject solution towards the apex of the tooth
Before injecting LA what should we do?
Apply topical anaesthetic solution to the overlying soft tissues
When we inject the LA what must we also be doing?
Retracting soft tissues
Aspirating
Why do we aspirate ?
To make sure the needle hasn’t hit a blood vessel
Name the 3 techniques we can use to anaesthetise maxillary nerves
- Buccal infiltration
- papillary injection
- Palatal injection
Where is the needle inject when giving a papillary injection?
Roughly at the level of the cervical margin
What can we see happening to the tissues when we give a papillary injection?
Blanching
The tissue becomes pale and tense
Where does the greater palatine nerve run?
Runs midway in the volt of the palate between the gingival margins of the teeth and the centre line
