how to numb all areas of the mouth

Question 1

what does the anterior superior alveolar block achieve? where inject?

Answer 1

anaesthesia of:

• incisor, lateral and canine
• buccal mucosa and soft tissue of said teeth

inject apex of canine at 45 degree angle

Question 2

what does the middle superior alveolar block achieve? where inject?

Answer 2

anaesthesia of:

• 1st, 2nd premolar and mesiobuccal cusp 16/26

inject at upper 7 apex

Question 3

what does the posterior superior alveolar block achieve? where inject? what are the risks?

Answer 3

anaesthesia of:

• 18, 17, 16 (minus mesiobuccal cusp)
• buccal gingiva of these teeth

inject buccal to the 7/8, just below the zygomatic arch (cheekbone) at 45 degree angle using only 16mm (half long needle)

highest risk of haematoma so aspirate!

Question 4

what does the nasopalatine block achieve? where inject?

Answer 4

hard palate anaesthesia canine to canine

inject at nasopalatine foramen just behind centrals

Question 5

what does the greater palatine block achieve? where inject?

Answer 5

hard palate 1st premolar and back

inject medial to the second molar

Question 6

what does the buccal block achieve? where inject?

Answer 6

soft tissue buccal of 48, 47 and 46

inject disto-buccal of the lower 7 in the soft tissue, parallel to mandibular molar occlusal plane

Question 7

what does the inferior alveolar nerve block achieve? where inject?

what are the risks and how treat?

Answer 7

anaesthesia of:

• all lower teeth on one side
• soft tissue mesial of molars
• soft tissue lingual to molars
• half of tongue

inject 1cm above the occlusal plane of the lower 7, lateral to pterygomandibular raphe medial to coronoid notch.

approaching from the contralateral premolars

risks are trismus and treat with muscle relaxants and NSAIDS

Question 8

what does the incisive block achieve? where would you inject?

Answer 8

anaesthesia of:

• central to second premolar
• soft tissue buccal of all of these teeth

inject at just anterior to mental foramen and hold pressure on mental foramen for 2 minutes

Question 9

what does the infraorbital block achieve? where would you inject?

Answer 9

anaesthesia of:

• upper central to 2nd premolar and mesiobuccal cusp of first molar
• soft tissue buccal to all of these teeth

inject apical of upper 4/5

Question 10

what does the mental block achieve? where would you inject?

Answer 10

all soft tissue buccal to the lower centrals to the second premolar

inject at mental foramen but don’t hold pressure on foramen