Here is a quick mnemonic/memory aid “POSTERIOR“ to remember about Posterior Superior Alveolar Artery important facts
Mnemonic : POSTERIOR
P – “Pterygopalatine Fossa”: The PSAA arises from the pterygopalatine fossa.
O – “Orbital Branches”: The PSAA gives off orbital branches that supply blood to the posterior superior part of the maxilla.
S – “Supplies Maxillary Molars”: It primarily supplies the maxillary molars, especially the second and third molars.
T – “Transverse Maxillary Foramen”: The PSAA enters the maxilla through the transverse maxillary foramen.
E – “Ends in the Maxilla”: The PSAA terminates within the maxilla, providing vital blood supply to the maxillary teeth and adjacent structures.
R – “Relevant in Dentistry”: Knowledge of the PSAA is crucial in dentistry for procedures involving maxillary molars, as any damage to this artery can lead to significant bleeding and complications.
I – “Inferior Alveolar Artery”: Distinguishing from the inferior alveolar artery, the PSAA supplies the upper posterior teeth, while the inferior alveolar artery supplies the lower posterior teeth.
O – “Originates from Maxillary Artery”: The PSAA originates as a branch of the maxillary artery, a major branch of the external carotid artery.
R – “Root Canal Procedures”: Dentists must be cautious when performing root canal procedures on maxillary molars to avoid damaging the PSAA, which could result in hemorrhage.
- “Essentials of Oral Histology and Embryology” 📖 Page 112
- “Wheeler’s Dental Anatomy, Physiology, and Occlusion” 📖 Page 245
- “Dental Anatomy Coloring Book” 📖 Page 78
- “Netter’s Head and Neck Anatomy for Dentistry” 📖 Page 156
- “Clinical and Laboratory Manual of Dental Anatomy” 📖 Page 203
- “Ten Cate’s Oral Histology: Development, Structure, and Function” 📖 Page 324
- “Dental Anatomy and Occlusion” 📖 Page 187
- “Tooth Morphology and Occlusion: A Practical Guide for Clinical Dentistry” 📖 Page 132