When teeth that are cracked, chipped, decayed, experienced trauma, or are infected those tooth’s nerve tissue or pulp has become damaged. As a result, the pulp decays and bacteria grow and multiply.
Bacteria and other decaying fragments can cause infections or an abscessed tooth. Abscesses are pockets of infected fluids that form at the end of the root canals that then spreads past the ends of the roots of the tooth and the infect surrounding tissues. Such an infection in the tooth can cause inflammation that can spread to other areas of the face.
Abscesses can cause bone loss around the root of the tooth. Abscesses can create holes on the side of the tooth draining into the cheek, gums or the skin.