Root canal treatment (endodontic therapy) is a dental procedure intended to treat an infection caused by bacteria at the centre of a tooth causing massive toothache. An endodontic treatment is performed by making an opening on the top of the affected tooth. The space that the pulp occupied in the centre of the tooth will be carefully cleaned and widened using very small instruments, shaping the inner chamber to accommodate a filling. Filling material is used to fill a tooth after a root canal procedure. The entire root canal treatment is done under a dental microscope, proved for the best solution to save your tooth for many years or even a lifetime.