Root Canal Treatment

Does your tooth ache at night, develop sensitivity to hot or cold foods, or feel uncomfortable when chewing? These symptoms are not always related to simple tooth sensitivity. Sometimes, the cause is inflammation or infection of the pulp tissue located inside the tooth.

Root canal treatment is a dental procedure performed to remove damaged or inflamed tissue inside the tooth, clean and shape the root canals, and fill them with a special material. The primary goal is to eliminate the source of pain and retain the tooth in the oral cavity if its condition permits.

How the treatment is performed, how many sessions it will take, and the subsequent method of restoring the tooth can vary for each patient. This decision is made based on a clinical examination, X-ray images, and the overall condition of the tooth.

During the consultation with Dr. Ummahani Huseynova, the cause of the toothache is investigated, the patient's complaints are heard, and an appropriate treatment plan is explained.

What is Root Canal Treatment?

Root canal treatment is a procedure belonging to the field of endodontics in dentistry. Popularly, this treatment is more commonly known as "removing the nerve of the tooth." However, the process is actually much more comprehensive than that.

Inside the tooth lies a soft tissue called the pulp. This tissue contains nerves, blood vessels, and connective tissues. The pulp can become damaged due to deep caries, trauma, a leaking old filling, or a crack in the tooth. In such cases, the tooth reacts to hot and cold, aches spontaneously, and sometimes causes more discomfort at night.

During root canal treatment, the damaged tissue is removed, the root canals are shaped using specialized instruments, disinfected, and then filled with an appropriate material. At the end of the treatment, the tooth can be reinforced with a filling, a crown, or another restoration method.

This treatment is not performed solely to reduce pain. If the structure of the tooth and the surrounding tissues allow, root canal treatment helps protect the tooth from extraction.

When is Root Canal Treatment Needed?

Not every toothache indicates the need for root canal treatment. However, certain signs may point to a serious problem within the pulp tissue.

A dental examination should not be delayed in the following cases:

• Spontaneous tooth pain;
• Aching that worsens at night;
• Pain that persists for a long time after consuming hot or cold food;
• Pain when applying pressure to the tooth during chewing;
• Swelling in the gum area;
• Darkening in the color of the tooth;
• Recurrent discomfort in a previously treated tooth;
• Changes visible around the root apex on X-ray images.

Sometimes, patients temporarily alleviate the pain using painkillers. However, if the problem originates from the tissue inside the tooth or the root apex area, the discomfort is likely to return. Therefore, instead of delaying the problem for a long time solely with painkillers, booking a dentist appointment is the correct approach.

The Difference Between Pulpitis and Apical Periodontitis

Pulpitis is the inflammation of the pulp tissue located inside the tooth. Patients often experience this as hot-cold sensitivity, prolonged pain, or an ache that increases at night.

In pulpitis, the problem begins within the tooth. When deep caries approaches or reaches the pulp, that tissue becomes irritated, inflamed, and painful. In some cases, the pain is short-lived. In more advanced stages, the tooth begins to ache spontaneously.

In apical periodontitis, the problem has already spread to the apex (tip) of the tooth root. In this case, the patient may feel pain when pressing on the tooth, discomfort during chewing, and sometimes swelling. Changes around the root apex can be observed on X-ray images.

These two conditions are interrelated but are not the same. Pulpitis is primarily a problem that starts inside the tooth. In apical periodontitis, the process has reached the root apex area. The treatment decision is made based on the condition of the tooth, the nature of the pain, and imaging results.

How is Root Canal Treatment Performed?

The progression of root canal treatment depends on the condition of the tooth, the depth of the infection, and the anatomy of the root canals. In some teeth, the process is straightforward, while in others, narrow, curved, or accessory canals can complicate the treatment.

Typically, the treatment is carried out in the following stages:

Examination and Diagnostics

First, the patient's complaints are heard, the oral cavity is examined, and the necessary X-ray images are analyzed. In simple cases, a periapical X-ray may suffice. In the event of complex root canals, root canal retreatment, or suspicion of a hidden canal, a 3D dental CBCT scan may be required.

This stage shows the clinician which tooth the problem is originating from, how far the infection has spread, and what plan the treatment will follow.

Local Anesthesia

Local anesthesia is applied to ensure the patient's comfort during the treatment. The anesthetic is selected according to the condition of the tooth and the patient's sensitivity.

Cleaning the Canals

The damaged or infected tissue inside the tooth is removed. Subsequently, the root canals are instrumented, shaped, and disinfected using specialized tools. This stage is one of the most critical parts of root canal treatment.

Obturation (Filling the Canals)

After the canals are cleaned and prepared, they are filled with a specialized material. The primary goal here is to seal the canal space and reduce the risk of bacteria re-entering the area.

Tooth Restoration

Following root canal treatment, the upper part of the tooth is restored. Sometimes a filling is sufficient. However, if the remaining healthy tooth structure is limited, crowns, inlays, onlays, or other restoration methods are recommended.

Root Canal Treatment Under Microscope

Root canals are not always straight and easily visible. In some teeth, canals are very narrow, curved, or present as accessory branches. In such cases, it can be difficult to fully visualize the canal system with the naked eye.

Root canal treatment under a microscope helps the clinician operate with a highly magnified and detailed view. This approach can be particularly beneficial in the following scenarios:

• Narrow and curved canals;
• Searching for hidden accessory canals;
• Complex root anatomies;
• Root canal retreatment;
• When there is a broken instrument in the canal;
• Investigating persistent problems following a previous treatment.

A microscope is not a tool that guarantees an outcome. However, when properly indicated, it helps the clinician work with greater precision and gain a better view of the canal system.

Treatment of Complex Root Canals

The root anatomy of all teeth is not identical. Some teeth have a higher number of canals, while some canals are narrow, curved, or difficult to negotiate. Especially in posterior teeth, the canal anatomy can be more complex.

The following features may be encountered in complex root canals:

• A narrow canal system;
• Curved root canals;
• Additional hidden canals;
• Canals narrowed due to calcification;
• An infection that has not fully healed after a previous treatment;
• Persistent discomfort in the root apex area.

In such cases, the treatment may require more attention and time. Relying on X-rays and, when necessary, 3D imaging results, the clinician investigates the canal system more precisely. The number of treatment sessions may also vary depending on the anatomy of the tooth.

When is Root Canal Retreatment Needed?

In some patients, a tooth that has previously undergone root canal treatment may begin to ache again after some time. This does not necessarily mean that the previous treatment was performed incorrectly. Subsequent reinfection of the tooth, a leaking old filling, or a hidden canal that went undetected during the initial treatment can cause such situations.

Root canal retreatment may be required in the following cases:

• Recurrent pain in a previously root-treated tooth;
• Discomfort during chewing;
• Visible changes in the root apex area;
• Incomplete instrumentation of the canals;
• Microleakage under an old filling or crown;
• Subsequent detection of a hidden canal;
• Development of new caries.

Root canal retreatment cannot be performed on every tooth. The root of the tooth, the surrounding bone support, the status of the previous treatment, and the restorability of the tooth are analyzed together. Sometimes retreatment is an appropriate choice, while at other times, alternative treatment options are discussed.

Removal of a Broken Instrument from the Canal Under Microscope

The instruments used in root canal treatment are highly delicate. In rare instances, one of these instruments may fracture and remain within the canal. Although such a situation sounds alarming to a patient, the decision is not made solely based on the presence of the instrument.

The clinician initially considers several factors:

• Which part of the canal the instrument is located in;
• Whether the canal is narrow or curved;
• Whether an infection is present in that specific tooth;
• The overall condition of the tooth;
• Whether attempting to remove the instrument will cause additional damage to the tooth.

In some cases, it is possible to remove the broken instrument under a microscope. In other cases, attempting to remove it may pose a higher risk to the tooth. In such instances, the clinician explains the situation to the patient and selects the most appropriate treatment path.

The microscope can help the clinician work more precisely in these scenarios. However, it is incorrect to guarantee that a broken instrument can always be removed.

MTA Closure in Teeth with Immature Roots

In some children and adolescents, the root development of permanent teeth is not yet fully complete. If deep caries, trauma, or pulp damage occurs during this period, the natural closure process of the root apex may be disrupted.

In such cases, when properly indicated, a specialized material called MTA (Mineral Trioxide Aggregate) can be used. This material creates a customized barrier at the root apex, helping the canal to close.

This procedure is known as apexification in dentistry. Simply put, the terminal part of the canal in a tooth with an incomplete root is sealed so that the tooth can be treated in a more stable manner.

MTA is not used in every root canal treatment. The clinician utilizes this material only when the clinical situation is appropriate.

What Should Be Considered After Root Canal Treatment?

Following root canal treatment, mild sensitivity and discomfort during chewing may occur for a few days. This condition is usually temporary. Particularly in teeth that were initially painful and infected, it may take some time for the tissues to settle down.

During this period, attention should be paid to the following points:

• If a temporary filling is present, avoid chewing hard foods with that tooth;
• Follow the clinician's recommendations;
• Maintain rigorous oral hygiene;
• Do not delay scheduled follow-up appointments;
• Consult the dentist if severe pain, swelling, or increasing discomfort develops.

A tooth that has undergone root canal treatment can become more brittle over time. If the remaining healthy tooth structure is limited, a simple filling may not suffice in the long term. For this reason, a crown or a more robust restoration method is recommended for some patients.

Should a Crown Be Placed Over a Root Canal Treated Tooth?

This question frequently arises after root canal treatment, particularly regarding posterior teeth.

A tooth that has undergone root canal treatment can continue to function in the mouth. However, if a significant portion of the tooth's hard tissues has been lost due to deep caries or a large filling, the risk of fracture may increase.

In such situations, the dentist may offer different restoration choices to better protect the tooth:

• Composite filling;
• Ceramic inlay and onlay;
• Restoration with post support;
• Dental crown.

Which method is selected depends on the amount of remaining healthy tooth structure, the position of the tooth, and the masticatory (chewing) load.

Which Imaging Methods are Used for Root Canal Treatment?

Accurate diagnostics are vital in root canal treatment, as the cause of the pain may not always be where the patient feels it. Sometimes the problem stems from an adjacent tooth, the root apex area, or a previously performed treatment.

Various imaging methods can be used for diagnosis.

Periapical X-ray

This image helps to closely visualize the root apex area and surrounding tissues. It is one of the most frequently utilized diagnostic methods in root canal treatment.

Panoramic X-ray

A panoramic X-ray shows the general status of the oral cavity. The clinician can view not only the aching tooth but also the other teeth, root structures, and the jaw area in a comprehensive manner.

3D Dental CBCT

A 3D dental CBCT can be useful in complex canal structures, root canal retreatments, suspected broken instruments, and the investigation of hidden canals. Not every patient requires a 3D tomographic scan. This decision is made based on the condition of the tooth.

What is the Difference Between Root Canal Treatment and Tooth Extraction?

In cases of deep caries, pulpitis, or apical periodontitis, patients often wonder: "Is it better to get a root canal treatment or have the tooth extracted?"

There is no one-size-fits-all answer to this question. The primary consideration is the extent to which the tooth can be restored.

If the root of the tooth, the surrounding bone support, and the remaining healthy tissues permit, the first choice is usually to preserve the tooth. Root canal treatment is one of the therapies performed for this purpose.

However, in certain cases, preserving the tooth may not be possible. For example:

• If there is an extensive fracture in the tooth;
• If severe damage has occurred at the root level;
• If the surrounding bone support is weak;
• If the upper portion of the tooth is insufficient for restoration;
• If the infection is extensively widespread.

In such situations, tooth extraction and subsequent restoration options can be discussed. The correct choice becomes clear following the examination and imaging results.

What Can Happen if Root Canal Treatment is Delayed?

Tooth pain may subside for a while, but this does not mean the problem has completely resolved. In some instances, after the pulp tissue is damaged, the pain decreases, yet the infection continues within the root apex area.

When root canal treatment is delayed, the following situations may occur:

• Intensification of pain;
• Increased discomfort during chewing;
• Swelling in the gum area;
• Changes around the root apex;
• Increased difficulty in restoring the tooth;
• An increased likelihood of tooth extraction in some cases.

The process does not progress identically in every tooth. Some patients experience severe pain, while in others, the problem is detected on an X-ray image without any major complaints. Therefore, leaving a toothache unaddressed for a long period is not the right approach.

What Does the Price of Root Canal Treatment Depend On?

The price of root canal treatment is not uniform for every tooth. The number of canals in the tooth, the level of inflammation, whether it has been previously treated, and the complexity of the procedure can influence the cost.

The exact price is determined only after the condition of the tooth is evaluated during an examination.

What Should Be Considered When Choosing a Doctor for Root Canal Treatment in Baku?

Root canal treatment is not merely about cleaning painful tissue. It requires considering diagnostics, correctly reading the canal anatomy, managing the infection, and planning the subsequent restoration together.

When choosing a clinician, it is helpful to look for the following aspects:

• A detailed examination of the tooth;
• Analysis of X-rays and, if necessary, 3D images;
• Clear explanation of the treatment stages to the patient;
• Selection of an individualized approach in complex cases;
• Consideration of the restoration plan following the root canal treatment.

During a consultation with Dr. Ummahani Huseynova, the clinical presentation, X-ray images, and the patient's complaints are evaluated together. Subsequently, a customized treatment plan is explained in detail to the patient.

Frequently Asked Questions About Root Canal Treatment

Conclusion

If tooth pain increases particularly at night, reacts to hot and cold foods for a prolonged period, causes discomfort during chewing, or if a previously root-treated tooth begins to ache again, waiting is not the right approach. In such cases, the problem may originate from the pulp tissue inside the tooth or the root apex area, rather than simple sensitivity.

The goal of root canal treatment is to attempt to eliminate the cause of the pain, reduce the risk of infection, and retain the tooth in the mouth whenever possible. The treatment plan, however, is not identical for every patient. The condition of the tooth, the character of the pain, X-ray findings, canal anatomy, and previous treatments are all taken into consideration together.

In some instances, standard root canal treatment is sufficient. In more complex cases, working under a microscope, root canal retreatment, CBCT imaging, the use of MTA, or build-up and crown planning for the final restoration may be required.

If your tooth is causing discomfort at night, hurts when chewing, or if you feel a recurring issue in a previously treated tooth, you can schedule an appointment with Dr. Ummahani Huseynova to determine the actual condition of the tooth and find out the most appropriate treatment plan for you.