A root canal is a dental procedure that removes the infected pulp, the soft tissue inside the tooth's root canal. This procedure is often necessary to save a tooth that is badly decayed or infected. While root canals are generally successful, there are instances where they can fail.
What are the signs of a root canal failure?
Several signs may indicate that a root canal has failed. These include:
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Pain: This is the most common symptom of a failed root canal. The pain may be constant or come and go. It may be sharp, throbbing, or dull.
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Swelling: The area around the treated tooth may become swollen. This swelling may be accompanied by redness and tenderness.
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Drainage: Pus may drain from the treated tooth. This is a sign that the infection has returned.
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Discoloration: The treated tooth may become discolored. This can range from a slight yellowing to a dark gray or brown.
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Loose tooth: The treated tooth may become loose. This is a sign that the bone around the tooth is being destroyed.
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Fracture: The tooth may fracture. This is more likely to occur if the tooth has had a large filling or crown placed on it.
What are the causes of a root canal failure?
There are several reasons why a root canal may fail. These include:
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Incomplete cleaning of the root canal: If the infected pulp is not completely removed, the bacteria can continue to grow and cause an infection.
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Fracture of the tooth: If the tooth fractures, the bacteria can enter the root canal and cause an infection.
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New decay: If new decay develops around the treated tooth, it can allow bacteria to enter the root canal and cause an infection.
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Inadequate restoration: If the crown or filling that is placed on the treated tooth is not properly sealed, it can allow bacteria to enter the root canal and cause an infection.
What should I do if I think my root canal has failed?
If you think your root canal has failed, it is important to see your dentist as soon as possible. They will be able to examine the tooth and determine the cause of the failure. They may recommend additional treatment, such as another root canal, a surgical procedure, or extraction of the tooth.
How can I prevent a root canal failure?
There are several things you can do to prevent a root canal failure. These include:
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Practice good oral hygiene: Brush your teeth twice a day and floss daily. This will help to remove plaque and bacteria from your teeth and gums.
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See your dentist regularly for checkups and cleanings: This will help to catch any problems early, before they become serious.
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Tell your dentist if you have any pain or swelling in your mouth: This could be a sign of a problem that needs to be treated.
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Avoid biting on hard objects: This can fracture your teeth and make them more susceptible to infection.
Conclusion
Root canal failures are not common, but they can happen. If you think your root canal has failed, it is important to see your dentist as soon as possible. They will be able to determine the cause of the failure and recommend the appropriate treatment.
Dental Blog Rancho Palos Verdes, CA | Expert Dentist Tips Educational dental blog from Rancho Palos Verdes CA dentist. Expert tips on oral health and dental implant treatments - stay informed, learn more today! Palani Center For Dental Implants, 29050 S. Western Ave, Suite 108B, Rancho Palos Verdes, CA 90275-1434, (310) 894-8337, drpalani.com, 11/12/2025, Related Phrases: Dental Implants Rancho Palos Verdes CA,
A root canal is a dental procedure that removes the infected pulp, the soft tissue inside the tooth's root canal. This procedure is often necessary to save a tooth that is badly decayed or infected. While root canals are generally successful, there are instances where they can fail.