Dental and Facial Pain
The roots of the upper teeth often protrude into the maxillary sinus, where an infection can spread from the sinuses to the teeth, or vice versa. An infection that occurs in this manner can feel like pain in a single tooth or in a group of teeth. When this occurs, you may experience dental pain, which can vary from mild to severe. As well, an infection of the maxillary sinus can spread to the tooth root, which may require you to undergo a root canal.
The nerve that supplies sensation to the cheek is situated along the roof of the maxillary sinus. When this sinus is inflamed, you may experience pain when you press against your cheek or cheeks, if both cheek sinuses are involved. This infection can present itself as a headache, a sharp pain, or facial pressure. If the infection in the sinus is bad enough that it affects the maxillary nerve, it too can result in pain in one tooth or multiple upper teeth.
If you are experiencing any of these particular symptoms, be sure to discuss them with your primary-care physician or otolaryngologist, as well as your dentist.



