Maxillary Sinus Ostium

The maxillary sinus ostium is the opening of the maxillary sinus into the middle nasal meatus. It is a critical structure for nasal drainage and ventilation, and any obstruction or malfunction of this opening can cause pain, recurrent infections, and other complications of the sinuses. The location and size of the maxillary sinus ostium can be identified using imaging techniques such as computed tomography scanning. Surgical interventions may be necessary to remove any blockages and restore drainage and ventilation to the sinus.