nerve innovations for LA

what does the greater palatine nerve supply

exit: adjacent to the maxillary second molars as the greater palatine nerve enters the posterior part of the hard palate it runs anteriorly to supply the mucosa of the hard palate and gingiva and PDL from teeth 8 to 4 maxillary nerve divides and in the pterygopalantine fossa. one branches off via the sphenopalantine ganglion and becomes the descending palatine palatine nerve that runs inferiorly through the greater and lesser palatine foramen

anterior superior alveolar nerve

exit: apical foramen 0f 1, 2, 3 supply: when MSA is not present will supply 1-6 if MSA is present will supply > supply the pulp of 1-3 >supporting alveolar bone >PDL's >buccal gingiva >part of maxillary sinus

the lesser palatine

exit: posterior to the greater palatine foramen, in line with the 3rd molars image 2 the mucosa of the soft palate and uvula

long speno-palatine

exits: between the 2 incisors at the incisive foramen supply: the palatal gingiva and PDL around the maxillary 1, 2, 3, 4 maxillary nerve divides to become the long spenopalantine nerve> goes to the spenopalantine ganglion > runs along the roof of the nasal cavity and diagonally down the nasal septum (vomer) to run into the INCISIVE canal> incisive foramen

PSA: posterior superior alveolar nerve

supply to the mucous membranes of the sinus pulps and PDL's of the maxillary 8, 7, 6 (not always the mesiobuccal root) exit: apical foramina of maxillary molars

Middle superior alveolar nerve

30% of the population don't have the MSA exit: apical foramen of the maxillary PM supply: > the maxillary premolars and the mesiobuccal root of the 6 > supporting alveolar bone >buccal gingiva in the maxillary 3, 4, 5, 6, >part of the maxillary sinus