Anatomy ofmaxillary sinuses

Amin Abusallamah

Maxillary sinuses

• Largest pns.

• Pyramidal in shape.

• base pointing to lateral wall of nose.

• Apex laterally in the zygomatic process.

• Capacity 15 ml.

Relations

• Anterior :- facial surface of maxilla.

• Posterior :- infratemporal and pterygopalatine fossa

• Medial :- middle and inferor meatus

• Floor :- alveolar & palatine processes of maxilla

• Roof :-floor of orbit

• Blood supply : Facial, infra orbital, greater palatine arteries.

• Lymphatic drainage : Submandibular nodes.

• Nerve supply : Infra orbital, anterior, middle and post superior alveolar nerves.

Blood & nerve supply

Teeth related to maxillary sinus

Thank you

Woelfel’s Dental Anatomy , Rickne C. Scheid

Reverence