Treatment that aims to preserve a tooth in the mouth by cleaning out diseased or damaged pulp tissue and filling the root canals so that the tooth can stay in function.
Indication
- Irreversible pulpitis (prolonged, spontaneously starting tooth pain)
- Pulp necrosis (tooth that has lost its vitality)
- Apical periodontitis and periapical abscess formation
- Pulp damage following dental trauma
- Teeth requiring pulp treatment before prosthetic restoration (crown, bridge)
- Failure of previous root canal treatment (retreatment)
Preparation
- Periapical X-ray and, when needed, CBCT to evaluate the root canal anatomy
- Pulp vitality testing to assess the status of the tooth
- Discussion with the dentist about the number of sessions planned and any subsequent prosthetic restoration needs
- Planning of antibiotics and analgesics in cases of severe active pain or swelling
How it's performed
- Local anesthesia is administered
- The tooth is isolated from saliva and bacteria with a rubber dam
- A small access cavity is opened on the tooth to reach the pulp chamber
- The root canals are shaped with specialized files and cleaned with irrigation solutions
- The canals are filled, temporarily or permanently, with biocompatible materials (gutta-percha and root canal sealer)
- The access cavity is sealed with a suitable filling or temporary filling; the definitive restoration (filling, onlay, or crown) is planned for a later appointment
Post-procedure
- Mild chewing sensitivity may occur for a few days after the procedure
- Avoid chewing on the treated side for the first 24 hours
- Use of pain relief medication as recommended by the dentist
- A crown or comprehensive restoration is generally recommended for long-term durability of root-treated teeth
- Periodic radiographic follow-up (usually every 6-12 months) to monitor healing
Risks
- Sensitivity or mild pain lasting a few days after treatment
- Instrument breakage or inability to clean all canals in calcified or curved root canal anatomies
- Incomplete healing of a periapical lesion and need for retreatment
- Risk of fracture in teeth that are not properly restored
- Rare allergic reactions to anesthetics
FAQ
Is root canal treatment painful?
Thanks to local anesthesia the procedure is usually painless. Mild sensitivity may occur for a few days after treatment and is controlled with the recommended pain relievers.
How many sessions does root canal treatment take?
Depending on the condition of the tooth and the presence of infection, a single session may be sufficient or several sessions may be needed. The dentist decides based on root anatomy and infection level.
How long does a root-treated tooth last?
Root-treated teeth that are properly restored and regularly checked can remain functional for many years; the risk of fracture is markedly higher in teeth that have not received a crown or full coverage.
Could tooth extraction be preferred over root canal treatment?
Preserving the natural tooth is generally a priority for oral function and jawbone health. Extraction followed by implant or prosthetic options is considered when the tooth cannot be saved.
Related Information
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