A tooth can still hurt after a root canal. In some cases, the first treatment did not fully resolve the infection, or a new problem developed later. If that happens, root canal retreat may give the tooth another chance to heal. You may notice pain when chewing, swelling near the tooth, or sensitivity around a tooth that was treated months or even years ago.
Root canal retreatment is a second endodontic procedure performed on a tooth that has already received root canal treatment. The endodontist removes the previous filling material, checks the canals for missed areas or infection, cleans the canal system, and seals it again. The goal is to remove the source of the problem and preserve the natural tooth when possible.
At Dr. Glen Mitchell Endodontics, also known as Toothsavers, patients in Boca Raton can receive specialist care for root canal treatment, retreatment, endodontic surgery, and related dental problems. Dr. Glen B. Mitchell is a board-certified endodontist with an endodontic specialty certificate from Columbia University.
What Is Root Canal Retreatment and Why Might You Need It?
Root canal retreatment is a procedure used when a tooth that already had a root canal has not healed properly or has developed a new infection.
A root canal removes infected or inflamed pulp from inside a tooth. The canals are then cleaned, filled, and sealed. With proper care, many treated teeth can last for many years. However, treatment can sometimes fail or a new problem can affect the tooth later.
Why Can a Root Canal Fail?
A previous root canal can fail for several reasons. One common reason is that a narrow or curved canal was not treated during the first procedure. Another reason is unusual canal anatomy that was difficult to identify.
Also, bacteria can enter the tooth again if a crown or filling becomes loose, cracked, broken, or delayed after treatment. New decay can also expose the root canal filling to bacteria. In some cases, the tooth itself may develop a fracture.
Some patients have no strong symptoms at first. An infection may be found during a dental examination or imaging. Others may notice clear signs such as:
- Pain when biting or chewing
- Swelling around the tooth
- Tenderness near the gum
- A recurring pimple or drainage near the tooth
- Sensitivity or discomfort
- A tooth that feels different from nearby teeth
- Signs of infection seen on dental imaging
However, symptoms alone cannot confirm that retreatment is needed. A proper examination is required because pain can come from several dental conditions.
Is Retreatment the Same as Getting a Root Canal Again?
Yes, but the procedure is performed on a tooth that has already received root canal treatment.
During root canal retreatment, the endodontist must first gain access to the previous treatment. Existing filling material may need to be removed. If a crown, post, or other dental material blocks access, it may also need to be removed or adjusted.
The endodontist then examines the canals for missed anatomy, infection, or other problems. The canals are cleaned and shaped before new filling material is placed.
This process can take more time than the first treatment because the dentist must work through existing dental materials and previous treatment.
At Toothsavers in Boca Raton, Dr. Mitchell provides endodontic treatment for patients who need specialist care. His practice focuses on root canal treatment, retreatment, microsurgery, and diagnosis of dental pain.
How Does Root Canal Retreatment Work at an Endodontic Office?
Root canal retreatment usually starts with an examination, followed by treatment planning and cleaning of the existing root canal system.
The first step is diagnosis. Your endodontist reviews your symptoms, dental history, previous treatment, and dental images. Depending on the case, additional imaging may be useful to check the roots and surrounding bone.
What Happens During the Procedure?
The tooth is numbed before treatment begins. A dental dam is used to isolate the tooth and keep the working area clean. The endodontist then creates access to the root canal system.
The previous root canal filling material is removed. If a crown, post, or core material blocks access, it may need to be removed as well. This gives the endodontist access to the canals that require treatment.
Next, the canals are examined carefully. The endodontist looks for untreated canals, unusual anatomy, damaged areas, or signs of infection.
The canals are then cleaned and shaped. After cleaning, new filling material is placed to seal the canal system. A temporary filling may be placed before your regular dentist completes the permanent restoration.
The exact treatment time depends on the tooth and its condition. Toothsavers notes that some root canal treatments can take about one hour, while other cases may take more than two hours. Some treatments can also require more than one visit.
Why Can 3D Dental Imaging Help?
Three-dimensional imaging can provide additional information about the tooth and surrounding structures.
Toothsavers uses CBCT dental scanning for certain root canal cases. CBCT creates three-dimensional images that can show details that may not be clear on standard dental X-rays. This can be useful when an endodontist is checking unusual root anatomy, missed canals, or other findings around a treated tooth.
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CBCT is not required for every patient. Your endodontist decides whether additional imaging is appropriate based on your dental condition and treatment needs.
This type of evaluation can help the dentist plan the next step before treatment begins. It can also help identify whether nonsurgical retreatment, endodontic surgery, or another option should be considered.
When Should You Consider Root Canal Retreatment?
You should have a previously treated tooth checked if pain, swelling, or other symptoms return, especially if the symptoms continue or become worse.
A tooth that has received root canal treatment can develop problems months or years later. Therefore, new symptoms should not be ignored simply because the tooth was treated in the past.
What Signs Should You Watch For?
Pain during chewing is one reason to schedule a dental evaluation. Swelling near the tooth is another. You may also notice tenderness in the gum or a small area that repeatedly drains.
However, not every failed root canal causes pain. Some infections are found through dental imaging before a patient notices symptoms.
You should also have a previously treated tooth checked if its crown or filling becomes damaged. A broken or loose restoration can allow bacteria to reach the inside of the tooth again. New decay can cause the same problem.
A cracked tooth also requires assessment. A crack can affect the prognosis of the tooth and may change which treatment is suitable.
Can Retreatment Save the Natural Tooth?
In many cases, retreatment can help preserve a natural tooth.
The American Association of Endodontists states that a previously treated tooth can sometimes be treated again when it has not healed properly or develops a new disease process. The treatment choice depends on the condition of the tooth, the reason for the previous failure, and whether the canals can be accessed and treated.
However, retreatment is not suitable for every tooth. If nonsurgical treatment cannot address the problem, an endodontic surgical procedure may be considered.
Extraction is another option when the tooth cannot be saved. After extraction, the missing tooth may need replacement with an implant, bridge, or removable dental prosthesis.
That is why an examination by an endodontist is useful before deciding what to do. The dentist can review the tooth and explain the available treatment choices.
How Is Root Canal Retreatment Different From Endodontic Surgery?
Root canal retreatment cleans and reseals the canal system from inside the tooth, while endodontic surgery provides access to the root from the outside.
Nonsurgical retreatment is often considered when the existing root canal can be accessed and treated. However, some cases cannot be fully addressed through the normal access opening.
When Might Apicoectomy Be Recommended?
An apicoectomy is an endodontic surgical procedure that treats the end of a tooth root.
During this procedure, the endodontist accesses the root through the gum and bone. The infected tissue around the root may be removed, and the end of the root can be sealed.
The American Association of Endodontists notes that endodontic surgery may be considered when canals are unusually narrow or blocked, making nonsurgical retreatment difficult. It can also be used as an alternative or in combination with retreatment in selected cases.
The decision depends on the cause of treatment failure and the condition of the tooth.
Dr. Glen Mitchell provides endodontic care that includes root canal treatment, retreatment, and endodontic microsurgery. His practice is located at 900 Glades Road, Suite 3A, Boca Raton, Florida.
Why Does Specialist Care Matter?
Endodontists receive additional training after dental school that focuses on diseases and injuries involving the dental pulp, roots, and surrounding tissues.
The Toothsavers website states that Dr. Mitchell completed an endodontic specialty certificate at Columbia University and is a Diplomate of the American Board of Endodontics. He also completed a general practice residency and an oral surgery fellowship.
Retreatment can require careful removal of old filling material and detailed examination of the canal system. Therefore, specialist training can be useful when a previous root canal has not produced the expected result.
What Should You Expect After Root Canal Retreatment?
Mild soreness or sensitivity can occur after endodontic treatment, and the area may feel tender when you chew.
Toothsavers states that moderate discomfort and tenderness can occur after root canal treatment and usually decrease over several days. If pain continues or you have concerns after treatment, you should contact your dental provider.
How Can You Protect the Treated Tooth?
The treated tooth normally needs a permanent restoration after the endodontic procedure.
A temporary filling does not provide the same long-term protection as a permanent restoration. Your general dentist may place a crown or another suitable restoration depending on the amount of remaining tooth structure and the tooth's location.
You should also maintain normal oral hygiene. Brush your teeth, clean between them, and attend regular dental appointments.
Avoid putting unnecessary pressure on a tooth that has a temporary restoration. Follow the specific instructions provided by your dentist or endodontist.
How Long Can a Retreated Tooth Last?
A retreated tooth can continue to function for many years when the infection is successfully treated and the tooth receives proper restoration and care.
The American Association of Endodontists states that properly cared-for root canal treated teeth can last a lifetime, although individual outcomes vary. No dental procedure can guarantee that every tooth will heal successfully.
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Your endodontist can discuss the expected outcome after examining your tooth. The condition of the root, the quality of the previous treatment, the presence of cracks, and the final restoration can all affect the result.
Why Choose Dr. Glen Mitchell Endodontics for Root Canal Retreatment in Boca Raton?
Dr. Glen Mitchell Endodontics focuses on endodontic treatment, including root canals, retreatment, endodontic surgery, and dental pain diagnosis.
Dr. Mitchell is a board-certified endodontist and has practiced endodontics for more than 25 years, according to his practice profile. His education includes Northwestern University for his D.D.S., a general practice residency connected with the University of Michigan and VA hospitals, an oral surgery fellowship at the University of Michigan, and endodontic specialty training at Columbia University.
What Services Are Available?
Toothsavers provides several services related to endodontic care, including:
- Root canal treatment
- Root canal retreatment
- Endodontic microsurgery
- Apicoectomy
- CBCT dental scanning
- Cracked tooth evaluation
- Endodontic consultation
- Emergency root canal care
The practice also states that same-day emergency appointments are available for patients who call with dental pain.
The office is located at 900 Glades Road, Suite 3A, Boca Raton, FL 33431. The listed office hours are Monday through Friday, 9:00 a.m. to 5:00 p.m.
If a previous root canal is causing problems, a consultation can help determine what is happening and whether retreatment is appropriate.
Is IV Therapy Part of Root Canal Retreatment?
No. Intravenous vitamin or nutrient therapy is not a standard component of root canal retreatment.
Root canal retreatment is an endodontic dental procedure that involves accessing, cleaning, disinfecting, and resealing the root canal system. The American Association of Endodontists does not list IV vitamin therapy as part of standard endodontic retreatment.
Therefore, information about IV therapy should not be presented as a treatment feature of Dr. Mitchell's root canal services unless the practice specifically confirms that it offers such a service.
How Can You Book a Root Canal Retreatment Consultation?
The best first step is an endodontic examination when a previously treated tooth is painful, swollen, or showing signs of infection.
Dr. Glen Mitchell Endodontics provides consultations for root canal problems in Boca Raton. The practice lists its phone number as (561) 368-3636 and its office at 900 Glades Road, Suite 3A, Boca Raton, FL 33431.
During the visit, the endodontist can review your previous treatment, examine the tooth, use dental imaging when needed, and discuss treatment choices.
A second root canal does not automatically mean the tooth needs to be removed. In suitable cases, retreatment may allow the natural tooth to remain in place and continue functioning.
For patients in Boca Raton who need specialist assessment after an unsuccessful root canal, Dr. Glen Mitchell Endodontics at Toothsavers offers endodontic consultation and treatment focused on saving natural teeth when possible.
Frequently Asked Questions About Root Canal Retreatment
Can a tooth need another root canal after having one already?
Yes. A previously treated tooth can sometimes develop persistent or new infection. This may happen because a canal was missed, the canal anatomy was difficult to treat, or bacteria entered the tooth again through decay or a damaged restoration. A fracture can also affect the tooth. An endodontist can examine the tooth and determine whether retreatment is appropriate.
Is root canal retreatment painful?
The tooth is normally numbed before treatment, so you should not feel the procedure in the usual way. Some soreness or tenderness can occur afterward. Toothsavers states that moderate discomfort can occur after root canal treatment and often decreases within several days. If your pain becomes severe, continues, or concerns you, contact your dentist or endodontist.
How long does root canal retreatment take?
Treatment time varies from tooth to tooth. Factors include the number of canals, canal shape, previous dental work, infection, and access to the canal system. Toothsavers notes that root canal procedures can take about one hour or more than two hours, while some cases require additional visits. Your endodontist can give you a more specific estimate after examining the tooth.
Is retreatment better than extraction?
When a natural tooth can be predictably treated and restored, keeping it may be an option. Retreatment can sometimes allow a previously treated tooth to heal and remain functional. However, not every tooth can be saved. Extraction may be needed when the tooth has damage that cannot be treated. Your endodontist should review the tooth and explain the available choices before treatment.
Will I need a crown after retreatment?
A permanent restoration is usually needed after endodontic treatment to protect the tooth. Depending on the tooth and the amount of remaining structure, your dentist may recommend a crown or another permanent restoration. The American Association of Endodontists recommends returning to your dentist after retreatment so the tooth can receive appropriate final restoration.
What if retreatment does not work?
If nonsurgical retreatment cannot resolve the problem, endodontic surgery may be considered. An apicoectomy can provide access to the root end when the canal cannot be adequately treated through the tooth. If the tooth cannot be saved, extraction may be required. Your endodontist can discuss these options based on the condition of your tooth and the reason the earlier treatment failed.
Where is Dr. Glen Mitchell Endodontics located?
Dr. Glen Mitchell Endodontics is located at 900 Glades Road, Suite 3A, Boca Raton, Florida 33431. The practice lists office hours from Monday through Friday, 9:00 a.m. to 5:00 p.m. The listed phone number is (561) 368-3636. Patients can contact the office to ask about a root canal consultation or retreatment appointment.
Does every failed root canal need retreatment?
No. A previously treated tooth needs an examination before a treatment decision is made. The source of pain may be different from the root canal, and some teeth may need endodontic surgery instead of nonsurgical retreatment. In other cases, the tooth may have a crack or other damage that changes the treatment plan. An endodontist can assess the tooth and explain the suitable options.
For specialist evaluation of a previously treated tooth in Boca Raton, contact Dr. Glen Mitchell Endodontics at Toothsavers to arrange a consultation.