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Root canal filling

Tooth pain, increased sensitivity to hot or cold, and gum swelling may indicate damage to the internal tissues of the tooth. In such cases, endodontic treatment is necessary to preserve the tooth. Its key stage is root canal filling, which makes it possible to eliminate infection and prevent the recurrence of the inflammatory process.

What Is Root Canal Obturation

Obturation is the final stage of endodontic treatment, during which cleaned and disinfected root canals are hermetically filled with special materials. Essentially, this is root canal filling, the main purpose of which is complete isolation of the internal space of the tooth from bacteria and reinfection.

After removal of the affected pulp, the doctor performs mechanical and medicamental preparation of the canals, shapes them to the correct anatomical form, and prepares them for hermetic sealing. The filling must be dense along the entire length of the canal — from the orifice to the root apex. Insufficient sealing may lead to the recurrence of inflammation in the tissues surrounding the root.

The quality of obturation directly affects the long-term treatment outcome. That is why at the “Oxford Medical” clinic the procedure is performed under X-ray control, which makes it possible to assess the correctness of canal filling and confirm the effectiveness of the performed treatment.

Indications for Root Canal Filling

The decision to perform endodontic treatment is made after examination
and X-ray diagnostics. The main indications for the procedure include:

deep caries with pulp involvement;

pulpitis accompanied by pain;

periodontitis or inflammation of the tissues around the root apex;

recurrent inflammatory process in the tooth.

List of diseases

Contraindications to Root Canal Filling

In most clinical cases, endodontic treatment makes it possible to preserve a tooth even with significant damage to its internal tissues. However, in some situations, the doctor may conclude that root canal filling will not provide a predictable long-term result.

The procedure may be inappropriate in the following cases:

  • significant destruction of the crown portion of the tooth, when it cannot be properly restored even after treatment;

  • vertical root fracture that makes hermetic sealing impossible;

  • pronounced destruction of the bone tissue around the root with an unfavorable prognosis;

  • excessive tooth mobility in cases of severe periodontal damage.

In such cases, the doctor may recommend tooth extraction followed by restoration of chewing function using implantation or orthopedic constructions. At the private clinic “Oxford Medical,” dentists do everything possible to preserve the natural tooth and recommend extraction only when other treatment methods cannot provide a stable result.

Methods of Root Canal Filling

The tightness of obturation is a key condition for successful endodontic treatment. The choice of technique depends on the anatomy of the root canal system, the shape and length of the canals, as well as the presence of branches. In modern dentistry, the following main techniques are used:

  • Lateral condensation of gutta-percha. A classical method in which a master gutta-percha cone and additional cones are inserted into the canal and compacted with special instruments. The method allows achieving sufficient tightness in cases of standard root canal anatomy.

  • Vertical condensation of heated gutta-percha. This technique involves the use of thermally softened material that is compacted step by step. It makes it possible to thoroughly fill complex areas and ensures a denser three-dimensional obturation.

  • Injection techniques using thermoplastic gutta-percha. The material is introduced into the tooth structures in a heated state, which allows filling microcanals and branches. The method is effective in cases of complex root canal anatomy.

  • Combined techniques. These combine mechanical compaction and thermal processing of the material, which increases the quality of sealing and improves the long-term prognosis.

Modern methods of root canal filling make it possible to ensure максимально dense obturation and reduce the risk of reinfection.

Stages of Root Canal Filling

High-quality root canal filling is performed step by step and in some cases requires several visits to the dentist. Compliance with modern clinical protocols makes it possible to ensure tightness and achieve a predictable result.

Main stages of the procedure:

Diagnosis and Treatment Planning

Before starting treatment, the dentist performs an examination, after which a targeted X-ray or computed tomography scan is carried out. This makes it possible to assess the anatomy of the root canal system, the length of the canals, the presence of an inflammatory process, and to plan further actions.

Anesthesia and Tooth Isolation

The treatment is performed under local anesthesia, which ensures the patient’s comfort. According to indications or at the patient’s request, sedation may be used. To protect the working field from saliva contamination, the tooth is isolated with a rubber dam, which increases the sterility of the procedure.

Mechanical and Medicinal Treatment

The doctor removes the affected pulp, enlarges and shapes the canals with special instruments, after which antiseptic treatment is performed. At this stage, it is important to completely eliminate the infection and prepare the tooth structures for hermetic filling.

Determination of the Working Length of the Canal

With the help of an apex locator and X-ray control, the exact length of the canal is determined, which makes it possible to perform complete filling.

Hermetic Filling

After preparation, the canal is tightly filled with a special filling material using the appropriate technique. The quality of obturation is monitored radiologically.

Restoration of the Coronal Part of the Tooth

After completion of endodontic treatment, the tooth is restored with a filling or a crown, depending on the degree of destruction.

Root Canal Filling: Possible Complications

In most cases, endodontic intervention proceeds without complications and allows the tooth to be preserved for a long time. However, it should be understood that the root canal system has a complex anatomy, so the tissue response after the procedure may be individual.

In the first days after treatment, physiological post-procedural reactions are possible:

  • slight pain during chewing;

  • a feeling of “pressure” in the area of the treated tooth;

  • moderate sensitivity that gradually decreases.

Such manifestations are associated with the reaction of the tissues around the root apex to the performed intervention and usually disappear within a few days.

Potential complications include:

  • persistence of infection due to complex or atypical canal structure;

  • recurrent inflammation in case of loss of tightness of the filling;

  • exacerbation of a chronic process in the periapical tissues;

  • the need for repeated endodontic treatment.

At Oxford Medical dentistry, considerable attention is paid to the prevention of such situations. During treatment, X-ray control is обязательно performed, the exact working length of the canal is determined, thorough antiseptic treatment is carried out, and the quality of sealing is checked. The use of modern equipment and certified materials makes it possible to minimize risks and ensure a stable long-term result.

Private Clinic Services: Cost of Root Canal Filling in Kyiv at Oxford Medical Clinic

The cost of root canal filling is determined individually and depends on the number of root canals in the tooth, the need for a medicinal stage of treatment with the placement of a temporary filling, as well as whether the treatment is performed for the first time or it concerns repeated endodontic intervention. The overall cost is also influenced by the method of subsequent restoration of the coronal part — by means of a filling or placement of a crown.

You can предварительно ознакомиться with the prices for medical services in Kyiv at Oxford Medical dentistry here. More precise information regarding the specifics of treatment and the cost will be provided by the doctor during the consultation.

To make an appointment at a convenient time for you, you can contact by phone or use the online booking form on the website.

Frequently Asked Questions

Does the Tooth Hurt After Root Canal Filling?

After endodontic treatment, moderate discomfort or sensitivity when biting is possible. This is a normal reaction of the tissues around the root apex to the performed intervention. The pain is usually moderate and gradually decreases over several days. Intense or increasing pain is not normal and requires a doctor’s consultation.

Why Does a Tooth Hurt After Root Canal Filling?

The cause may be a natural reaction of the periapical tissues to mechanical and medicinal treatment. During the procedure, the doctor works within the root canal system, so the tissues may temporarily respond with pain or a feeling of pressure. Less commonly, the discomfort may be caused by an exacerbation of a chronic inflammatory process or the need for bite correction after tooth restoration.

How Many Days Does a Tooth Hurt After Root Canal Filling?

Mild soreness may persist for 1 to 3 days, sometimes up to 5–7 days, gradually decreasing. If the pain lasts longer or intensifies, it is necessary to consult a dentist for an examination and to rule out complications.

How Long Can You Have a Temporary Filling After Root Canal Treatment?

The duration depends on the clinical situation and the treatment plan. Usually, a temporary filling is placed for a period of several days up to 1–2 weeks. Delaying the next visit is not recommended, as the temporary material is not designed for long-term load and may lose its tightness.

Can You Drink Alcohol After Root Canal Filling?

In the first days after treatment, it is advisable to refrain from drinking alcohol. This is due to the fact that the body is going through a recovery stage, and anti-inflammatory or antibacterial medications may be prescribed, which are incompatible with alcohol. In addition, alcohol can increase tissue swelling and slow down healing.

Is Anesthesia Required for Root Canal Filling?

Yes, the treatment is performed under local anesthesia. Modern anesthetics provide complete pain relief, so the procedure is painless. The type and extent of anesthesia are selected individually, taking into account the condition of the tooth and the patient’s sensitivity.

Is Tooth Filling the Same as Root Canal Filling?

No. Tooth filling is the restoration of the coronal part in cases of caries when the lesion does not reach the pulp. Root canal filling is a stage of endodontic treatment during which the internal root canals are treated and hermetically sealed after the removal of affected tissues. These are different procedures with different levels of complexity and indications.

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Advantages of Root Canal Filling in Kyiv at Oxford Medical Clinic

Accurate diagnosis before treatment. X-ray control or computed tomography is performed, which allows assessing the anatomy of the root canal system and planning the treatment with maximum precision.

Compliance with modern clinical protocols. All stages of endodontic treatment are carried out in accordance with current standards of dental care, which ensures a predictable result.

Use of high-quality materials. Certified filling materials are used for obturation, ensuring reliable sealing.

Comprehensive approach to tooth restoration. After completing the endodontic stage, the doctor selects the optimal method of restoring the coronal part of the tooth to achieve a long-term functional result.

Reviews
Ганна 22.01.2026
Дуже вдячні лікарю, адміністрації, всій команді. Приїхали у Київ на операцію з Запоріжжя. У день операції у клініці було відсутнє живлення через масовані обстріли на енергосистему. Колектив з порозумінням сприйняв нашу ситуацію, приїзд за важких умов, професійно організували оперування в іншій кліниці. Ви команда професіоналів! Дякуємо!
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Катерина 15.01.2026
Віталіна Павлівна дуже уважно поставилася до моєї ситуації. Працює дуже акуратно, не було жодного відчуття страху. Після лікування нарешті зник дискомфорт, за що їй щиро вдячна.
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