How the different Root End Infections (Abscessed Teeth) Affect the Body Differently

There are three main kinds of root end tooth infections, but in most instances they are simply referred to as "abscessed teeth." The three main root end tooth infections are called granulomas,cysts and condensing osteitis. Granulomas and cysts, though they appear to be quite similar, have distinctly different characteristics.
Fistulas are channels that carry pus from the infection area to the outside of the face or mouth. They help the body drain away excessive  amounts of pus.

Abscessed Teeth

An abscess in the tooth refers to an infection that was caused by a pocket of pus residing in the tissue around the tooth.  Abscesses are very serious conditions, and can lead to serious matters if they aren’t treated immediately.  When the pulp of a tooth dies due to damage or decay, bacteria will begin to grow from the dead tissue that is left.  This bacteria will eventually spread from the root of the dead tooth into the tissue that is below and create a pocket of pus - the abscess.