But what is Maxillary Air Sinus?

The maxillary sinus is one of the four paranasal sinuses, which are sinuses located near the nose.

The maxillary sinus is the largest of the paranasal sinuses. The two maxillary sinuses are located below the cheeks, above the teeth, and on the sides of the nose.

The maxillary sinuses are shaped like a pyramid and each contains three cavities, which point sideways, inwards, and downwards. The sinuses are small air-filled holes found in the bones of the face. They reduce skull weight, produce mucus, and affect the tone quality of a person’s voice.