When a root canal fails, you need clear options. At London Dental Specialists, we offer non-surgical retreatment as a preferred solution with high success rates (85-89%). This procedure involves removing the original filling, addressing infections, and resealing the tooth to preserve its integrity. Many patients worry about pain, recovery time, and alternatives like extraction or apicoectomy. Our specialists understand your concerns and guide you through each step of the retreatment process. We carefully evaluate each case to determine if non-surgical retreatment is appropriate or if other interventions might be necessary. Rest assured, most failed root canals can be successfully retreated, especially when the original treatment was performed years ago under different standards.
What is non-surgical retreatment for failed root canals?
Non-surgical retreatment is a procedure performed when a previous root canal therapy has failed. At London Dental Specialists, our endodontists remove the existing root canal filling materials, clean the canals thoroughly, address any infection or missed anatomy, and then place new filling materials to seal the tooth properly. This conservative approach aims to save your natural tooth without requiring surgical intervention.
How do I know if my root canal has failed?
Signs of a failed root canal may include:
- Persistent pain or discomfort in the treated tooth
- Swelling or tenderness in the gums near the treated tooth
- Development of a pimple-like bump (fistula) on the gums
- Sensitivity to hot or cold that lingers
- Tooth discoloration
- Pain when biting or chewing
If you experience any of these symptoms, we recommend scheduling an assessment at London Dental Specialists promptly.
What causes a root canal to fail?
Root canal treatment can fail for several reasons, including:
- Complex canal anatomy that was missed during initial treatment
- Narrow or curved canals not properly treated
- Delayed placement of the final restoration after treatment
- New decay exposing the root canal filling to bacteria
- A cracked or fractured tooth
- Defective or deteriorating crown margins allowing contamination
Our specialists at London Dental Specialists use advanced technology to identify and address these issues during retreatment.
What is the success rate of non-surgical root canal retreatment?
Non-surgical root canal retreatment has a high success rate of approximately 85-90%. At London Dental Specialists, our endodontists use state-of-the-art equipment and techniques to maximise the chances of successful outcomes. The prognosis depends on factors such as the reason for the initial failure, tooth anatomy, and the presence of complications.
What happens during a non-surgical retreatment procedure?
During non-surgical retreatment at London Dental Specialists, we:
- Administer local anaesthesia for your comfort
- Remove the crown or filling to access the root canal filling material
- Remove the previous filling material from the canals
- Clean and reshape the canals with specialised instruments
- Use microscopes to look for additional canals or fractures
- Disinfect the canals thoroughly
- Place new filling material to seal the canals
- Place a temporary filling or crown
You'll then need to return to your general dentist for a permanent restoration.
Is non-surgical retreatment painful?
Non-surgical retreatment at London Dental Specialists is performed under local anaesthesia, ensuring you remain comfortable throughout the procedure. While you may experience some mild discomfort for a few days following treatment, this can typically be managed with over-the-counter pain relievers. Our specialists prioritise your comfort and will provide detailed aftercare instructions to minimise any post-procedure discomfort.
What are the alternatives to non-surgical retreatment?
If non-surgical retreatment isn't suitable, alternatives include:
- Endodontic surgery (apicoectomy) - treating the tooth from the root end
- Extraction followed by tooth replacement options such as:
- Dental implant
- Bridge
- Removable partial denture
At London Dental Specialists, we thoroughly evaluate each case and recommend the most appropriate treatment option based on your specific situation.
How long does non-surgical retreatment take?
Non-surgical retreatment at London Dental Specialists typically requires 1-2 appointments, with each session lasting approximately 60-90 minutes. More complex cases may require additional time. The exact duration depends on factors such as tooth location, the number of canals, and the complexity of the case. Our specialists will provide you with a more precise timeframe during your consultation.
How long will the results of non-surgical retreatment last?
With proper care, a tooth that has undergone successful non-surgical retreatment at London Dental Specialists can last a lifetime. To maximise longevity, we recommend:
- Maintaining excellent oral hygiene with regular brushing and flossing
- Attending regular dental check-ups and cleanings
- Completing the final restoration (crown) promptly
- Avoiding chewing hard foods with the treated tooth
- Wearing a night guard if you grind your teeth
Regular follow-up appointments allow us to monitor the healing process and ensure long-term success.
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