What is posterior superior alveolar artery?

The posterior superior alveolar artery (PSAA) is the branch of the maxillary artery that supplies the lateral sinus wall and overlying membrane.

Where is the posterior superior alveolar artery?

The posterior superior alveolar artery is a branch of the third (peterygopalatine) part of the maxillary artery. It branches off within the pterygopalatine fossa and exits via the pterygomaxillary fissure on its way to the maxillary tuberosity.

What does the posterior superior alveolar supply?

Variant anatomy When the middle superior alveolar nerve is absent, the posterior superior alveolar nerve will supply all the molars and premolars.

What does the anterior superior alveolar artery supply?

The anterior superior alveolar branches descend through the anterior alveolar canals to supply the upper incisor and canine teeth and the mucous membrane of the maxillary sinus.

Where does posterior superior alveolar nerve come from?

The posterior superior alveolar nerves arise from the maxillary nerve within the PPF just after the maxillary nerve provides its ganglionic branches to the PPG (Cryer, 1916). They descend anteroinferiorly through the pterygomaxillary fissure and enter the posterior superior alveolar foramina.

How do you use posterior superior nerve block?

Technique:

1. A 25 or 27 gauge short needle is acceptable.
2. The area of insertion is the height of the mucobuccal fold above and distal to distobuccal root of the last molar present in the arch.
3. Retract the cheek so the tissue of the mucobuccal fold is taut.
4. Apply topical anesthetic.
5. Orient the needle bevel toward the bone.

What are the branches of posterior superior alveolar nerve?

These cutaneous branches include the zygomaticotemporal, zygomaticofacial, and infraorbital nerves, whereas branches innervating the nasopharynx and maxillary sinuses include the greater and lesser palatine nerves, nasopalatine nerve, and pharyngeal nerve.

Which teeth does the posterior superior alveolar nerve supply?

What teeth does the inferior alveolar nerve supply?

Through its dental branch, the inferior alveolar nerve provides sensation to your lower three molars and two premolars per side. Through its mental branch, it provides sensation to your chin and your bottom lip.

How do you prevent an inferior alveolar nerve?

The inferior alveolar nerve block, a common procedure in dentistry, involves the insertion of a needle near the mandibular foramen in order to deposit a solution of local anesthetic near to the nerve before it enters the foramen, a region where the inferior alveolar vein and artery are also present.

What length needle would a dentist use to give a posterior injection of anesthesia?

Technique: A 25 or 27 gauge short needle is acceptable.

Where is the posterior superior alveolar artery located?

Posterior superior alveolar artery (PSAA) is the branch of maxillary artery that supplies lateral sinus wall and overlying membrane.

Can a needle pierce the posterior superior alveolar nerve?

The needle will not pierce the nerve but be in proximity to the Posterior Superior alveolar canal through which the posterior superior alveolar nerve, artery and vein pass.

How does the posterior superior alveolar nerve block work?

The needle in the Posterior Superior alveolar nerve block extends from the mucosa first and then pierces through the areolar tissue and some times passes through the Buccal fat in case it is present in the patient and lastly it pierces the posterior fibres of the Buccinator muscle.

Which is branch of maxillary artery supplies lateral sinus wall?

Posterior superior alveolar artery (PSAA) is the branch of maxillary artery that supplies lateral sinus wall and overlying membrane. The aims of this study were to examine the prevalence, diameter, and location of the PSAA and its relationship to the alveolar ridge and to study the prevalence of the sinus pathology and septum using computerized