Can sinusitis of the maxillary sinus cause toothache?

Maxillary sinusitis generally can cause toothache. The specific analysis is as follows:

Maxillary sinusitis refers to a condition caused by inflammation of the maxillary sinus mucosa. Since the teeth are closely connected to the maxillary sinus, if maxillary sinusitis worsens and leads to congestion, it may compress surrounding nerve tissues or dental nerve endings, resulting in tooth pain. Additionally, bacteria may enter surrounding tissues and organs—such as the teeth and facial soft tissues—through small openings in the maxilla, which could also lead to tooth pain.

To prevent further worsening of symptoms, it is recommended to seek medical attention promptly. Follow medical advice to use medications such as meloxicam tablets, naproxen capsules, ephedrine hydrochloride tablets, and oxymetazoline hydrochloride nasal spray, which can effectively alleviate the associated pain symptoms.