Dental Implants After Root Canal Treatment: Your Questions Answered - Dentistry

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Questions about dentures after root canal treatment?


Hello, doctor! I had a root canal treatment on my upper lateral incisor and had a fiberglass post placed.
Since I want to straighten my teeth, the nurse said that I should wait about 2 to 3 years after getting braces before getting a prosthetic tooth.
As for my lower second molar, I previously had a root canal treatment, but it later became inflamed.
The doctor mentioned there was a tumor, and after some time, it has gradually shrunk.
The nurse told me that I will need to have a post placed next time.
I really don't understand much about this area; is it really necessary to get a prosthetic tooth? Does a prosthetic tooth mean that it doesn't require extracting the natural tooth and is placed over it?

Wei Zhi, 20~29 year old female. Ask Date: 2016/10/20

Dr. Lin Jiayong reply Dentistry


Hello: If you are planning to undergo orthodontic treatment in the near future, it is not advisable to get a permanent crown, as the brackets used in orthodontics cannot be easily bonded to a prosthetic tooth.
However, if you do not plan to have orthodontic treatment within the next six months, it is recommended to promptly place a crown on the tooth that has undergone root canal treatment.
As for the dental posts, the decision should be based on the condition of each individual tooth.
Wishing you peace and health.

Reply Date: 2016/10/20

More Info


After undergoing root canal treatment, many patients have questions regarding the next steps, particularly when it comes to dental implants and the necessity of prosthetic teeth. Your inquiry touches on several important aspects of dental care, especially concerning the use of fiber posts, the need for crowns, and the implications of previous treatments.

Firstly, it’s essential to understand the purpose of a dental implant and how it differs from other dental restorations. A dental implant is a titanium post that is surgically placed into the jawbone to serve as a replacement root for a missing tooth. After the implant integrates with the bone, a crown is placed on top to restore the function and appearance of the tooth. In contrast, a crown is often placed on a tooth that has undergone root canal treatment to provide structural support and protect it from fracture, especially since treated teeth can become brittle over time.

In your case, since you have had root canal treatment on your upper outer tooth and are considering orthodontic treatment, it is crucial to follow the advice of your dental professionals. The use of a fiber post is common in root canal-treated teeth to provide additional support for the crown. However, it is vital to ensure that the tooth is stable and healthy before proceeding with any further treatment, including the placement of a crown or an implant.

Regarding your lower second molar, which had a previous root canal treatment and has been diagnosed with a tumor, it is essential to monitor its condition closely. If the inflammation has decreased and the tumor is shrinking, this is a positive sign. However, the decision to place a post or crown should be made based on the tooth's current health and the dentist's assessment. If the tooth is deemed non-restorable due to structural integrity or ongoing issues, extraction may be necessary, followed by the placement of an implant.

As for your question about whether a prosthetic tooth is necessary, it largely depends on the individual situation. If the tooth is extracted, an implant can provide a permanent solution that mimics the function of a natural tooth. If the tooth can be saved and restored with a crown, this may be a preferable option to maintain your natural dentition.
It’s also important to clarify that a prosthetic tooth (like a crown) is not simply placed over a natural tooth but is designed to replace the function and aesthetics of a missing tooth. If you have a tooth that is still viable after root canal treatment, a crown can be placed directly on it to restore its function. However, if the tooth is extracted, an implant will be placed in the jawbone, and a crown will be attached to that implant.

In conclusion, the necessity of a dental implant or crown after root canal treatment depends on the health of the tooth in question and the overall treatment plan devised by your dental team. It’s crucial to have open discussions with your dentist about your concerns and the best options for your dental health. Regular follow-ups and imaging may be necessary to monitor the condition of your teeth and ensure that any treatment you undergo is effective and appropriate for your situation.

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