LA - Anatomy

Question 1

name the different nerves that supply the maxillary teeth

Answer 1

posterior superior alveolar nerve: 8, 7, partially 6
middle superior alveolar nerve: partially 6, 5, 4
anterior superior alveolar nerve: 3, 2, 1

Question 2

hard palate innervation - what innervates the:

• anterior tip of HP?
• majority (middle) area?
• posterior area?

Answer 2

• incisive branch of nasopalatine nerve
• greater palatine nerve
• lesser palatine nerve

Question 3

4 main nerves that commonly undergo regional anaesthesia?

Answer 3

• long buccal
• inferior alveolar
• mental/incisive
• lingual

Question 4

which internal structure to aim for to give inferior alveolar block? in which region is it in?

Answer 4

mandibular foramen
pterygomandibular space (?)

Question 5

which structure (shows through soft tissue) acts as landmark to determine where to inject LA?
what muscles are attached to its anterior and posterior border?

Answer 5

pterygomandibular raphe
anterior border: buccinator
posterior border: superior pharyngeal constrictor muscle

Question 6

dental innervation:

maxillary arch?

Answer 6

posterior superior alveolar nerve
middle “
anterior “

Question 7

dental innervation:

mandibular arch?

Answer 7

inferior alveolar nerve (4-8)

incisive nerve: (1-3)

Question 8

mucosal innervation:
gingival tissues?
oral mucosa?
hard palate?

Answer 8

• upper lip: infraorbital nerve
  buccal mucosa: long buccal nerve
• hard palate: greater/lesser palatine nerve, nasopalatine nerve

Question 9

mandibular innervation:
oral mucosa (cheek)?
floor of mouth?
lower lip?

Answer 9

• long buccal
• lingual nerve
• mental nerve