Root canal treatment is one of the most common procedures in dentistry. In most cases, the treatment is successful and your teeth remain healthy for many years. However, in some cases, the tooth may not heal properly even after treatment, leading to various complaints.
The onset of such issues can vary from person to person. Problems may arise a few days after the procedure or even months later. If not treated again, it can lead to serious consequences such as infection and tooth loss.
So, how can you recognize a failed root canal? What are the consequences of unsuccessful treatment? In this article, we will explain the possible reasons behind it and the treatment options available if it occurs. If you're ready, let’s get started!
How to Recognize a Failed Root Canal?
After undergoing root canal treatment, you may notice recurring complaints like tooth pain or bleeding gums. This is a rare issue seen in a small number of patients. If such a problem arises and you visit your dentist, they will first check whether the previous treatment was successful.
The process typically starts with a general oral examination. The condition of the inflammation is assessed and healing progress is observed. An X-ray may be requested if needed. If the dental abscess has not healed and root resorption has occurred, it’s considered a failed root canal.
Why do Root Canal Treatments Fail?
Many patients visit dentists with complaints of tooth pain and dental abscesses. If the infection is too severe to be controlled with medication, root canal treatment becomes necessary.
Most patients return to their normal lives after the procedure without experiencing any further complaints. However, in rare cases, root canal treatment may fail.
But why does a procedure that works for the majority fail for some? Here are common reasons for failed root canals:
- Curved or narrow canals missed during the initial treatment
- Undetected complications within the canal anatomy during the procedure
- Delay in placing a crown or other restorative materials after treatment
- Infections caused by inadequate restorations inside the tooth
In addition, newly emerging issues can also threaten previously treated teeth, such as:
- New tooth decay
- Cracks or fractures in the teeth
- Loose fillings or crowns
Failed root canal treatment requires prompt intervention. If you’re looking for an experienced endodontist, don’t hesitate to contact us.
Symptoms of a Failed Root Canal
Symptoms of a failed root canal can vary from person to person. Still, they often resemble the symptoms experienced before the initial treatment:
- Pain
- Extreme sensitivity
- Swelling in the gums
- Tooth discoloration
- Redness or bleeding in the gums
If you notice any of these symptoms, you should consult your dentist again.
What are the Consequences of a Failed Root Canal?
Root canal treatment is intended to resolve the patient’s complaints once and for all. When the treatment is successful, the patient resumes their daily life without further issues.
However, if the treatment fails, the previous problems may resurface. If symptoms are not addressed quickly, the root nerves may become completely weakened, eventually leading to tooth loss.
What can be Done if a Root Canal Fails?
If a root canal fails, an endodontist will suggest alternative treatment options. Retreatment of the root canal may be proposed to fix the problematic area.
If retreatment isn’t feasible, dental implant therapy might be considered. In cases where both options are insufficient, surgical procedures may be necessary to control the infection.
How is Root Canal Retreatment Performed?
Most initial root canal treatments save the decayed tooth and extend its life significantly. However, sometimes a previously treated tooth may become reinfected for the reasons mentioned above. In such cases, the treatment should be renewed as soon as possible.
Retreatment procedures are generally similar to the original treatment. Still, you may feel hesitant due to the previous failed experience. Knowing the steps involved can help ease that anxiety. Here are the stages you should be prepared for during a root canal retreatment:
- The crown and underlying filling are removed to access the root canal
- The canals are thoroughly cleaned, shaped, and sterilized
- Canals are then filled and sealed; temporary fillings are placed carefully
- After final checks, the patient is informed about the status
If an abscess persists after retreatment, surgical intervention may be required. Additionally, you may need to schedule a follow-up appointment for crown placement once the retreatment is completed.
