Sinusitis, an inflammation of the sinus lining, can result in tooth pain due to the proximity of the sinuses to the mouth. The accompanying pressure from the infection can cause discomfort in the upper teeth, which can be mistaken for a toothache, and call for emergency dental services. Sinus pressure can also cause drainage, leading to tooth pain. The pain is typically concentrated in the upper rear teeth closest to the sinuses. If you are experiencing tooth pain in conjunction with sinusitis symptoms, it is recommended to seek a dentist emergency to diagnose and treat the underlying cause properly. Sinus Vs. Regular Toothache In contrast to a regular toothache, sinus toothache symptoms are primarily felt in the upper molars, affecting multiple teeth rather than just one. Tooth pain may be due to a sinus infection, coupled with some listed symptoms, such as low energy or experiencing fever. In contrast, dental concerns that cause toothaches are often more intense and focused and the o...