Is it possible for my abscessed tooth infection to spread to my brain?

Yes: Left untreated an abscess can spread through soft tissue and eventually infect the brain.

It is possible: A tooth abscess won't go away without treatment and the infection may spread to your jaw, cheeks, sinus, brain and to other areas of your head and neck. A dental abscess is a collection of pus that forms in your teeth or gums as a result of a bacterial infection. Dentist will treat a tooth abscess by treating the cause and getting rid of the infection. See your dentist ASAP.