OdontologíaEndodoncia

Retreatment

Retreatment is a secondary endodontic procedure performed on a tooth that has already undergone root canal therapy but has developed new symptoms or failed to heal properly. At City Clinic, retreatment offers a second chance to resolve persistent infection and salvage the natural tooth.

Doctors & Specialists:

Dr.Álvaro Díaz de Alda
Said Ramazani

Even when a root canal seems to succeed initially, bacteria or leakage can cause reinfection over time, leading to discomfort, abscess formation, or radiographic signs of pathology. Retreatment involves carefully reopening the tooth, removing old filling materials, disinfecting canals, and resealing them to restore health.
City Clinic’s endodontists employ advanced imaging (e.g., CBCT), magnification, and precise instrumentation to detect missed canals, residual infection sources, or structural issues from the first treatment. This meticulous approach maximizes the odds of successful healing.

Indications

Persistent pain after prior root canal
Swelling or tenderness near treated tooth
X-ray shows infection or lesion at root tip
Decay or leakage around old filling/crown
Crack or fracture affecting the canal

Causes

Missed or untreated canal
Incomplete cleaning or sealing
Leakage from defective restoration
New decay or fracture exposing canals

Treatment Details

Procedure Steps

1

Access & Removal – Reopen tooth and remove old canal filling.

2

Cleaning & Disinfection – Clear infection and reshape canals.

3

Refilling & Sealing – Refill, seal, and restore tooth with new protection.

Duration:

Typically 60–120 minutes

Number of Sessions:

Usually one or two visits depending on complexity and presence of infection

Recovery / Downtime:

Mild discomfort or sensitivity for a few days; most patients resume normal routines soon after

Pain Level:

Low, with anesthesia during the procedure; sensitivity may follow afterward

Pre-Treatment:

  • Provide full dental and medical history
  • Avoid eating heavy or crunchy foods before appointment
  • Inform the dentist of any allergies or prior issues with the tooth

Post-Treatment:

  • Avoid chewing on the treated tooth until final restoration is in place
  • Use soft foods and avoid extreme temperatures initially
  • Take prescribed analgesics or medication if needed
  • Maintain good oral hygiene and follow dentist’s care guidelines
  • Return for follow-up to monitor healing and place permanent restoration

Results

Expected Outcome

Short-term: elimination of symptoms (pain, swelling) and resolution of infection.
Long-term: preservation of the tooth with restored function, avoiding extraction.

How Long
Results Last?


With proper restoration and care, a retreated tooth can last many years, often akin to a successful original root canal.

Risks & Considerations

Possible Side Effects


• Temporary sensitivity • Mild swelling or tenderness • Difficulty removing old material • Residual infection risk

Contraindications (who should avoid it)

• Teeth with structural damage or fractures beyond repair
• Poor periodontal support or bone loss making tooth stability doubtful
• Untreated gum disease or infection in neighboring areas

Safety Notes

At City Clinic, retreatment is performed under magnification, isolation techniques, and rigorous sterilization. Each case is assessed to ensure the tooth is viable to restore before proceeding.

Pricing

Price Range (approximate)

Factors Affecting Price

• Presence of posts, cores or obstructions
• Number of canals and complexity of anatomy
• Use of advanced imaging or surgical tools
• Needed restoration (crown, filling) post-treatment

Insurance Coverage

Retreatment is not covered by insurance.

FAQs

Is retreatment painful?
No — with modern anesthesia and techniques, discomfort is minimal.
Sometimes canals were missed, or bacteria persisted due to incomplete sealing or leakage.
Typically one or two visits, depending on case complexity.
Yes — it’s essential to protect the treated tooth permanently.
Yes — preserving the natural tooth is typically superior to extraction and replacement.

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