Root canal treatment (endodontic therapy), popularly known as “removing the nerve from a tooth,” is a procedure that saves a tooth that would otherwise have to be extracted. When decay progresses deep enough to reach the interior of the tooth, bacteria begin to destroy the tissue in the root canal and cause an infection that the body cannot overcome on its own.
At the Dental Vortex clinic, we perform this procedure completely painlessly, using local anesthesia, with both machine processing and a dental laser. Every tooth that can be saved is worth saving. If you are troubled by pain, sensitivity to hot or cold, or notice a change in tooth color, do not wait for the problem to grow larger.
What is root canal treatment and why is it important
Every tooth has a hard outer part (enamel, dentin, and cementum) and soft tissue inside, which we call the pulp. The pulp contains the tooth nerve, blood, and lymph vessels. It is precisely this part of the tooth that becomes a problem when decay is not treated in time or when tooth trauma occurs.

When bacteria reach the pulp, inflammation begins that the body cannot resolve on its own. The reason is simple: the infection is enclosed within the hard dental tissue, so white blood cells cannot reach it. The result is often severe pain, swelling, and sometimes a more serious infection that spreads to the surrounding tissue and bone.
Root canal treatment solves precisely this problem. The procedure removes bacteria and infected tissue from the root canal, disinfects the canal, and seals it hermetically, which prevents a new infection. The tooth remains in place, functional, without the need for extraction.
When is root canal treatment needed?
Root canal treatment is not always accompanied by severe pain. Sometimes patients are entirely unaware that they have a problem until the dentist discovers it during a routine checkup. There are three most common conditions that require endodontic therapy, and these are:
- Inflamed tooth nerve – Pulpitis
- Tooth gangrene
- Periapical lesion (process at the tip of the root)
Inflamed tooth nerve – Pulpitis
Pulpitis occurs when decay that has gone untreated for a long time penetrates through the enamel and dentin and reaches the pulp. At this stage, patients most often feel sharp pain in response to cold, hot, or sweet stimuli. The pain can last from a few minutes to several hours, and in more severe cases it occurs spontaneously, without any trigger.
How to relieve an inflamed tooth nerve
When sharp pain occurs in a tooth, the first instinct is to look for a way to reduce the pain at home. In the short term, an ibuprofen-based painkiller can ease the symptoms because it also works against inflammation. A cold compress on the cheek (not directly on the tooth) can temporarily reduce discomfort. It is important to avoid very hot and very cold food and drink, as they further irritate the already inflamed nerve.
However, these are exclusively temporary measures that buy time until a visit to the dentist; they do not resolve the cause of the problem. An inflamed nerve cannot heal on its own, by rinsing, with antibiotics without dental intervention, or with any home remedy. The reason is that the inflammation takes place within the enclosed space of the tooth, where medications from the bloodstream cannot reach in sufficient concentration.
The only permanent way to resolve an inflamed nerve is endodontic therapy – removing the infected tissue and cleaning the root canal. The sooner the procedure is performed, the greater the chances of fully preserving the tooth without complications. If your tooth hurts for more than a day, especially if the pain intensifies at night or with heat, it is a sure sign that it is time to visit the dentist.
Tooth gangrene
Gangrene occurs when bacteria colonize the root canal of the tooth in large numbers. Paradoxically, patients at this stage often have no pain and do not know there is a problem. It is precisely for this reason that regular checkups with the dentist are so important. If gangrene is not detected in time, the infection spreads to the tissue below the tip of the root, and at that stage a certain number of teeth can no longer be saved.
Symptoms of tooth gangrene
Tooth gangrene is insidious precisely because in its early stage it often proceeds without pain. The nerve has already died, so the tooth stops sending pain signals, and the patient thinks the problem has resolved on its own. Symptoms to watch for include darkening of the tooth (the tooth becomes gray or dark yellow compared to neighboring teeth), an unpleasant taste in the mouth or bad breath that does not go away despite regular brushing, the appearance of a fistula – a small white or reddish spot on the gum above the tooth that occasionally “bursts” and discharges pus, as well as mild pain or discomfort when biting.
What happens if gangrene is not treated
Over time, the bacteria from the root canal break through the tip of the root and spread into the surrounding bone. A periapical lesion forms, which is an inflammatory process that destroys the bone tissue around the tooth. In advanced cases, a cyst may form, an abscess that spreads to the soft tissues of the face, and even general symptoms such as elevated temperature and swelling. In the worst case, the tooth can no longer be saved and must be extracted.
This is precisely why early detection of gangrene is so important. Regular checkups with an X-ray allow the dentist to spot the problem before it causes irreversible damage.
Tooth gangrene pictures
Analysis of X-ray images of gangrene: Before and After
In the attached X-ray images, we can clearly follow the healing process of a tooth affected by gangrene and the accompanying cyst.
- Condition during treatment (Image 1): In the first image, a radiolucency is clearly visible around the very tip of the tooth root. This darker zone represents a cyst (periapical lesion), which arises as a consequence of untreated gangrene and the spread of infection from the tooth into the surrounding bone. The thin instruments visible in the root canal show the very procedure of thorough mechanical cleaning and disinfection of the tooth’s interior.
- Condition after therapy (Image 2): The second image shows the same tooth after successfully completed endodontic therapy, six months later. The root canal is now hermetically sealed and filled to the very tip with protective material (visible as a clear white line). The most important result of this treatment is the visible reduction of the dark shadow. The bone is regenerating, becoming denser and lighter on the image, which means the cyst is successfully receding.
Periapical lesion (process at the tip of the root)
A periapical lesion is an inflammatory process that forms at the tip of the tooth root as a consequence of an untreated infection. On the X-ray image, it appears as a round radiolucency around the tip of the root. Patients sometimes discover it by chance, during a routine X-ray. At this stage, the tooth most often hurts when biting. Treatment is possible conservatively with laser therapy, by applying medication into the root canal over several visits, and in more complex cases surgically as well.
If you notice a white spot on the gums above a tooth (a fistula), a change in tooth color, or pain that does not go away, do not delay your visit to the dentist.
| Condition | Main symptom | Pain | Urgency | Prognosis |
|---|---|---|---|---|
| Pulpitis | Sharp pain to hot, cold, and sweet | Severe | High | Excellent if acted upon quickly |
| Gangrene | Often without symptoms, darkening of the tooth, bad breath | Minimal | Medium to high | Good if detected in time |
| Periapical lesion | Pain when biting, fistula on the gum | Moderate | Medium | Very good with patience – requires 2-3 visits, but the bone regenerates successfully |
How root canal treatment is performed – step by step
Many patients delay visiting the dentist precisely because of fear of this procedure. The reality is different: root canal treatment today is a routine procedure performed completely painlessly, with local anesthesia. The procedure takes place in several stages:
Anesthesia
Before anything is done, the patient receives local anesthesia. The entire procedure that follows is painless.
Trepanation
The dentist opens the tooth, removes the decay, and accesses the pulp chamber inside which the nerve is located.
Pulp extirpation
The infected tissue and nerve are removed from the root canal. The canal is then mechanically processed and rinsed with a chemical solution (irrigant) that removes organic and inorganic debris.
Disinfection
If necessary, a medication is placed in the canal that acts between two visits in order to completely eliminate the infection.
Filling the canal
Once the canal is clean, it is filled with gutta-percha points (a biocompatible material) and a special paste. The canal is hermetically sealed, which prevents a new infection.
Closing the tooth
The cavity (the opening in the tooth) is closed with permanent material. Depending on the amount of remaining tooth substance, the dentist may recommend reinforcing the tooth with a fiberglass post or a cast post-and-core, as well as placing a crown for additional protection.
Machine processing of the canal
At the Dental Vortex clinic, we use machine processing of the root canal in addition to the standard manual method. Machine instruments allow for more precise and faster canal processing, with a higher percentage of disinfection. For the patient, this means less time in the chair and a longer lifespan for the tooth after treatment.
Use of the dental laser
After mechanical processing, we use a dental laser as needed. The laser has a strong antibacterial effect and reaches all parts of the root canal, including those that instruments reach with difficulty. The result is more thorough cleaning and a lower risk of reinfection.
Apicoectomy
In more complex cases, when conservative treatment does not produce results, the dentist may recommend an apicoectomy, which is a short surgical procedure that removes the tip of the root together with the inflammatory process. The intervention is performed under local anesthesia and makes it possible to save a tooth that would otherwise have to be extracted.
Does root canal treatment hurt?
This is a question that almost every patient asks before the procedure. The answer is short: no, root canal treatment does not hurt. The entire procedure is performed under local anesthesia, which completely blocks the pain during the procedure. Most patients are surprised at how comfortable the procedure is compared to what they expected.
After the procedure, once the anesthesia wears off, mild sensitivity when biting or a feeling of pressure in the area of the treated tooth is possible. This is a normal tissue reaction and passes within a few days. If needed, the doctor will recommend an appropriate painkiller.
What truly hurts is not the root canal treatment, but delaying that treatment. Fear of pain is understandable, but in practice it is precisely this fear that leads patients to wait too long. And the longer one waits, the more the infection progresses, the pain intensifies, and the treatment options narrow. If your tooth already hurts, that is a signal that it is the right time to visit the dentist.
Who is root canal treatment for?
Root canal treatment is recommended in the following situations:
- Decay that has progressed to the pulp and caused inflammation of the tooth nerve (pulpitis)
- Tooth gangrene, that is, a bacterial infection of the root canal
- Tooth trauma that has led to damage or disruption of the pulp’s nourishment
- A tooth fracture that has opened the pulp and exposed it to bacteria
- A change in tooth color, most often darkening, which indicates non-vitality (death) of the tooth
- A fistula on the gums (a white spot above the tooth that resembles a pimple) as a sign of infection in the root canal
- An incidental finding on an X-ray, when the dentist discovers a radiolucency at the tip of the root without visible symptoms
Root canal treatment is not always possible. In cases where the tooth is too damaged, where the infection has advanced to the point that the bone around the tooth is irreversibly destroyed, or where the tooth does not have enough remaining substance to be restored, tooth extraction may be the only option. The assessment is always made by the dentist based on a clinical examination and an X-ray.
Alternative to root canal treatment
The only real alternative to root canal treatment is tooth extraction. There are no other options because once the infection reaches the pulp, the tooth cannot be cured with a filling, antibiotics, or any other conservative approach. The choice comes down to whether you will save the tooth or extract it.
To many patients, extraction seems like a faster and simpler solution, but it opens up a new problem: a gap in the jaw that needs to be filled. If the extracted tooth is not replaced, the neighboring teeth begin to shift, the bite changes, and the bone at the site of the extracted tooth gradually recedes.
The most common options for replacing an extracted tooth are placing a dental implant with a crown or making a bridge that rests on the neighboring teeth. Both options are significantly more expensive than root canal treatment, require more visits, and are a more invasive procedure. An implant involves a surgical procedure and a healing period of several months, while a bridge requires grinding down healthy neighboring teeth.
That is why the rule holds: every tooth that can be saved with root canal treatment is worth saving. It is the most economical, fastest, and least invasive option with an excellent long-term prognosis.
Price list for root canal treatment
The price of root canal treatment depends on which tooth is being treated, that is, how many root canals that tooth has. Front teeth most often have one canal, premolars one to two, while molars have two to three canals.
| Service | Price |
|---|---|
| Endodontic treatment of single-canal teeth with laser therapy | 4,000 RSD |
| Endodontic treatment of two-canal teeth with laser therapy | 5,000 RSD |
| Endodontic treatment of multi-canal teeth with laser therapy | 6,000 RSD |
| Machine treatment of single-canal teeth with laser therapy | 5,500 RSD |
| Machine treatment of two-canal teeth with laser therapy | 6,500 RSD |
| Machine treatment of multi-canal teeth with laser therapy | 7,500 RSD |
| Vital and mortal extirpation | 3,500 RSD |
| Revision of filling | 4,500 / 5,500 RSD |
| Treatment of gangrene with laser therapy (1 session) | 4,000 RSD |
| Inter-session medication | 3,500 RSD |
| Tooth X-ray | 700 RSD |
The listed prices refer exclusively to root canal treatment. A filling, crown, or tooth build-up after completed endodontic therapy is calculated separately, depending on the condition of the tooth and the chosen restoration. For an accurate estimate of the price and number of visits, a clinical examination and an X-ray are required.
Frequently Asked Questions (FAQ)
Schedule an examination in Belgrade
If you are troubled by tooth pain, sensitivity to hot or cold, or have noticed some other change that worries you, do not delay your visit. Root canal treatment is a procedure that saves the tooth, and the sooner it is done, the better the results.
At the Dental Vortex clinic in Zvezdara, we receive patients every weekday and on Saturdays. Schedule an examination by phone, by email, or online, and our team will take care of everything else.

