Posterior superior alveolar nerve
- Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)
Updates to Article Attributes
The posterior superior alveolar nerve, also known as the posterior superior dental nerve, is the firsta branch of the infra-orbital nerve, from
Gross anatomy
It arises from the infra-orbitalmaxillary division of the trigeminal nerve in the pterygopalatine fossa just before it enters the inferior orbital fissure, and descends into the pterygomaxillary fissure. From here it or several individual branches enter the maxilla via small alveolar canals. Terminal dental branches enter the apical foramina at the dental roots.
The nerves supply the maxillary sinus, posterior maxillary oral mucosa and the maxillary molar teeth apart from the mesiobuccal root of the first maxillary molar tooth, which is supplied by the middle superior alveolar nerve.
Variant anatomy
When the middle superior alveolar nerve is absent, the posterior superior alveolar nervenerve will supply all the molars and premolars.
-<p>The <strong>posterior superior alveolar nerve</strong>, also known as the <strong>posterior superior dental nerve</strong>, is the first branch of the <a href="/articles/infraorbital-nerve-2">infra-orbital nerve</a>, from the maxillary division of the <a href="/articles/trigeminal-nerve">trigeminal nerve</a>. It is the first of the superior alveolar nerves and contributes to the superior dental plexus.</p><h4>Gross anatomy</h4><p>It arises from the infra-orbital nerve in the <a href="/articles/pterygopalatine-fossa">pterygopalatine fossa</a> just before it enters the <a href="/articles/inferior-orbital-fissure">inferior orbital fissure</a>, and descends into the <a href="/articles/pterygomaxillary-fissure">pterygomaxillary fissure</a>. From here it or several individual branches enter the <a href="/articles/maxilla">maxilla</a> via alveolar canals. Terminal dental branches enter the apical foramina at the dental roots.</p><p>The nerves supply the <a href="/articles/maxillary-sinus">maxillary sinus</a>, posterior maxillary oral mucosa and the maxillary molar <a href="/articles/teeth">teeth</a> apart from the mesiobuccal root of the first maxillary molar tooth, which is supplied by the <a href="/articles/middle-superior-alveolar-nerve">middle superior alveolar nerve</a>.</p><h4>Variant anatomy</h4><p>When the middle superior alveolar nerve is absent, the posterior superior alveolar nerve will supply all the molars and premolars.</p>- +<p>The <strong>posterior superior alveolar nerve</strong>, also known as the <strong>posterior superior dental nerve</strong>, is a branch of the maxillary division of the <a href="/articles/trigeminal-nerve">trigeminal nerve</a> arising just before the <a href="/articles/infraorbital-nerve-2">infra-orbital nerve</a>. It is the first of the superior alveolar nerves and contributes to the superior dental plexus.</p><h4>Gross anatomy</h4><p>It arises from the maxillary division of the <a href="/articles/trigeminal-nerve">trigeminal nerve</a> in the <a href="/articles/pterygopalatine-fossa">pterygopalatine fossa</a> just before it enters the <a href="/articles/inferior-orbital-fissure">inferior orbital fissure</a>, and descends into the <a href="/articles/pterygomaxillary-fissure">pterygomaxillary fissure</a>. From here it or several individual branches enter the <a href="/articles/maxilla">maxilla</a> via small alveolar canals. Terminal dental branches enter the apical foramina at the dental roots.</p><p>The nerves supply the <a href="/articles/maxillary-sinus">maxillary sinus</a>, posterior maxillary oral mucosa and the maxillary molar <a href="/articles/teeth">teeth</a> apart from the mesiobuccal root of the first maxillary molar tooth, which is supplied by the <a href="/articles/middle-superior-alveolar-nerve">middle superior alveolar nerve</a>.</p><h4>Variant anatomy</h4><p>When the middle superior alveolar nerve is absent, the posterior superior alveolar nerve will supply all the molars and premolars.</p>
References changed:
- 4. Susan Standring. Gray's Anatomy.(2015). Pages 526, 553. <a href="https://books.google.co.uk/books?vid=ISBN9780702052309">ISBN: 9780702052309</a><span class="ref_v4"></span>
Unable to process the form. Check for errors and try again.