The maxillary sinuses are shaped like a pyramid and each contain 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.
The maxillary sinus drains into the nose through a hole called the ostia. When the ostia become clogged, sinusitis can occur. The ostia of the maxillary sinus often clog because the ostia are located near the top of the maxillary sinus, thus making proper drainage difficult.
Maxillary sinusitis or an infection of the maxillary sinus can have the following symptoms: fever, pain, or pressure in the face near the cheekbones, toothache, and runny nose. Sinusitis is the most common of maxillary sinus illnesses and is usually treated with prescription antibiotics.
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