The root treatment is always preceded by an evaluation, an X- ray. After this, in local anesthesia the decayed tooth parts are removed and the dental pulp chamber is opened. Gases, causing the pain, clear out and treatment of the pulp chamber and of the root channel might start. With equipments different in size and surface we remove the dead and inflamed nerves and veins. After cleaning all the channels they are rinsed with a disinfecting liquid; then the channels are dried. In some cases medicinal treatment might be necessary. Sometimes the root channel shall be opened for a few days to let the abnormal liquids clear out.
Finally the tooth root can be filled. In such cases no anesthesia is needed as there are no living nerves in the tooth.
Last phase of the root filling is the actual filling of the tooth root which is carried out with a so called lateral condense method.
It means that the material used for root filling - the material of which is gutta percha - is pushed to each other in the root channel with an equipment designed for this purpose. Special material is used for sticking the gutta percha points to each other.
The filling material fills up the root channel till its top, closing down the channel from bacteria.
After root filling the decayed tooth crown is temporarily filled up with a special filling material as the crown can be closed down finally only after hardening of the root filling.
Freshly filled teeth are sensitive to bite but this will fade away in a few days.