Everything you need to know about an endodontic retreatment
A root canal (also known as root canal therapy) is a common dental procedure designed to save a tooth that is severely infected or decayed. During this treatment, the infected pulp inside your tooth is removed, the inner chambers are cleaned and disinfected, and then your tooth is sealed to prevent future problems. For most people, a root canal is a permanent solution that relieves pain and preserves the natural tooth.
But what happens if a root canal fails? While successful in most cases, root canals can sometimes fail months or even years after the initial procedure. Understanding the signs of a failing root canal, what causes it and your treatment options is crucial for protecting your oral health.
This guide will walk you through everything you need to know about failed root canal therapy and how an endodontic retreatment is the solution. We'll cover the symptoms to watch for, why failures happen and what steps you can take to resolve the issue and get your smile back on track.
Signs of a failing root canal
Recognizing the symptoms of a failing root canal early can make a significant difference in your treatment outcome. If you notice any of the following signs, it's important to contact your endodontist promptly.
Persistent pain: While some discomfort is normal immediately after a root canal, ongoing or new pain in the treated tooth is a red flag. This pain can range from a dull ache to a sharp, intense sensation, especially when you bite down.
Swelling and tenderness: Swelling in the gums near the treated tooth is a common sign of a new infection. The area might be tender to the touch and appear red or inflamed.
A pimple on the gum: The formation of a small, pimple-like bump (known as a fistula or abscess) on your gum is a clear indicator of infection. This bump may release pus or fluid.
Tooth discoloration: A change in the color of the treated tooth, which may turn grayish or dark, can signal that the underlying tissue has become reinfected.
Sensitivity to heat and cold: Lingering sensitivity to hot or cold temperatures in the treated tooth that doesn't go away quickly is another one of the key failing root canal symptoms.
If you experience any of these issues, don't ignore them. What happens if a root canal fails and is left untreated? The infection can spread to other teeth, your jawbone or even other parts of your body.
Common causes of root canal failure
You might be wondering, "what causes root canals to fail?" Several factors can contribute to failed root canal therapy. It's not always about something going wrong during the initial procedure. In many cases, new problems develop over time.
Incomplete cleaning: The root canal system of a tooth can be incredibly complex, with tiny, branching canals. If any of these canals are missed or not thoroughly cleaned during the first procedure, remaining bacteria can multiply and cause a new infection.
New decay: A new cavity can develop on the treated tooth, allowing bacteria to seep past the filling or crown and reinfect the inner canals.
Delayed crown placement: After a root canal, a permanent crown is usually placed to protect the tooth. If there's a significant delay in placing the crown, the temporary filling can break down, exposing the tooth to bacteria.
A cracked or damaged restoration: A crack in the crown or filling can create an entry point for bacteria, leading to reinfection. Similarly, a crack in the tooth root itself can also cause the treatment to fail.
Complex tooth anatomy: Some teeth have unusually narrow, curved, or hidden canals that make it difficult to clean them completely during the initial treatment.
Understanding these causes can help you take the right steps for prevention and know when to seek professional help.
What are the treatment options for a failed root canal?
If you have a failing root canal, don't worry. There are effective treatment options available to save your tooth. An endodontist like Dr. Nieves here at Granbury Endodontics will evaluate your specific situation and recommend the best course of action.
Endodontic retreatment
The most common treatment for a failed root canal is a procedure called endodontic retreatment. This is essentially a "do-over" of the original root canal. During retreatment, the endodontist will:
Reopen the tooth to access the root canal filling material.
Remove the existing filling, along with any infected tissue.
Carefully clean and reshape the canals, paying close attention to any complex or previously untreated areas.
Refill and seal the canals with a new, sterile material.
Place a temporary filling, and you'll return to your dentist for a new crown.
Retreatment is often successful in resolving the infection and saving the tooth for many years to come.
Apicoectomy (root-end surgery)
In cases where retreatment isn't possible or hasn't resolved the infection, an apicoectomy may be necessary. This is a minor surgical procedure where the endodontist accesses the root through the gum tissue.
During an apicoectomy, the tip of the tooth's root is removed, along with any infected tissue surrounding it. A small filling is then placed at the end of the root to seal it off. This procedure is highly effective for treating persistent infections located at the root tip.
Prevention and aftercare
While not all root canal failures are preventable, proper care can significantly reduce your risk. After your initial root canal or retreatment, follow these aftercare tips:
Practice good oral hygiene: Brush twice a day, floss daily, and use an antiseptic mouthwash to keep your teeth and gums healthy.
Get a permanent crown promptly: Don't delay getting your permanent crown placed. It provides crucial protection for the treated tooth.
Visit your dentist regularly: Schedule regular check-ups and cleanings to monitor your oral health and catch any potential issues early.
Avoid chewing on hard foods: Be mindful of chewing on hard items like ice or hard candy with the treated tooth, as this can cause the crown or tooth to crack.
When to see an endodontist like Dr. Nieves
If you suspect you have a failing root canal, it's essential to see an endodontist. An endodontist is a dental specialist with advanced training in diagnosing and treating complex tooth problems, including root canal therapy and retreatment.
At Granbury Endodontics, Dr. Nieves is a board-certified endodontist who specializes in saving natural teeth. He uses advanced technology, like the GentleWave® Procedure, to provide the highest standard of care. This minimally invasive technique uses fluid dynamics and sound waves to clean the most complex root canal systems, leading to better outcomes and a more comfortable experience for you. Seeking an expert like Dr. Nieves ensures you get the most effective treatment for a failed root canal.
Take action for your dental health with Granbury Endodontics
A failing root canal can be a frustrating and painful experience, but it doesn't have to mean losing your tooth. With modern endodontic treatments, there's a very good chance your tooth can be saved. Recognizing the symptoms and seeking prompt care from a qualified endodontist is the key to a successful outcome.
If you're experiencing pain or other symptoms in a previously treated tooth, don't wait. Your oral health is our top priority. Contact Granbury Endodontics today to schedule a consultation with Dr. Nieves and explore your treatment options.