Dental branches of anterior superior alveolar artery

Dental branches of the anterior superior alveolar artery are small arterial rami that arise from the anterior superior alveolar artery itself a branch of the infraorbital artery (from the maxillary artery) and supply the upper anterior teeth (incisors and canines). These branches descend through the anterior wall of the maxillary sinus within small bony canals of the maxilla to reach the dental pulp and periodontal structures of the anterior teeth.

Key anatomical features:

• Origin: The anterior superior alveolar artery branches off the infraorbital artery while it courses through the infraorbital canal, before the infraorbital artery exits through the infraorbital foramen.

• Course: The dental branches travel inferiorly through tiny canals in the anterior wall of the maxilla, running toward the roots of the upper anterior teeth.

• Supply: They provide blood to the dental pulp, periodontal ligament, and surrounding alveolar bone of the maxillary incisors and canine teeth. They also contribute to the blood supply of the adjacent gingiva and the mucous membrane of the maxillary sinus.

• Anastomoses: These branches anastomose with the dental branches of the middle and posterior superior alveolar arteries, forming a rich vascular arcade along the alveolar process of the maxilla that ensures collateral circulation to the upper teeth.