Treating the tooth with needles (endodontics) is necessary in cases when the cavity gets to the nerve of the tooth. Then it is necessary to remove the cavity and the nerve to start the treatment process. The treatment process includes cleaning, widening, and filling the canal. After the treatment process is finished, a composite filling or a prosthetic replacement is created, depending on the condition of the tooth.

In order for the treatment to be completely finished, it is necessary to first open the tooth and remove the infected nerve (pulp), clean the canal(s) and the root of the tooth, and fill the cleaned canal with artificial material which will prevent the progress of the bacteria.
After the canal is filled with artificial material, most often a filling is placed, but if a greater part of the tooth has a cavity, it is then possible to create a prosthetic replacement, such as an inlay, onlay, or overlay, and in some cases, it is necessary to create a crown for the tooth.

The treatment itself is completely painless and patients do not have to be afraid of pain. The treatment is pleasant and not invasive.

Unfortunately for the patient, it does not hurt! Pain as a symptom does not necessarily have to occur when the nerve gets infected. The pulp (nerve) can be infected without pain as a symptom. In that case, the infection can cause a granuloma or an infection of the bone beneath the root of the tooth. A granuloma, in that case, can remain still or grow through time without the patient having any symptoms or having symptoms so weak that the patient does not realize the problem. In the event the granuloma has a tendency to grow, it can develop into an acute periapical process which brings great pain and swelling, and sometimes causes the appearance of fistulas (white substance similar to an infected pimple which appears on the root of the tooth).
In certain cases, the dentist can prescribe an antibiotic. If it is a large infection the antibiotic treats the infected area, but it is important to emphasize that in the event of a toothache, you need to see a dentist who will prescribe an antibiotic if necessary, but do not take it on your own.

It is very important to know that an infected nerve needs to be treated immediately in order to prevent any further development of the disease which could lead to serious health problems!