Root Canal Treatment vs. Dentures: What You Need to Know - Dentistry

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Root canal. Dentures?


I have four front teeth on the upper jaw, two on each side, which underwent root canal treatment over 20 years ago but did not receive crowns.
Visually, a significant portion of them has changed color, and it's evident that the filling material occupies more than half of the tooth.
I am currently seeking treatment and may need to undergo root canal therapy again.
I would like to know if it is advisable for the same dentist to perform both the root canal treatment and the prosthetic work.

If a post needs to be placed, at which stage of the procedure would that occur? Additionally, if there is very little tooth structure remaining, is it possible that placing a post would be ineffective and that dental implants would be necessary? My teeth have noticeably changed color, possibly due to decay, and since the root canal treatment, I have not felt any pain, but the discoloration of the filling is more pronounced.

Is it true that during root canal treatment, the old filling must be removed, and if there is significant decay, does that mean everything needs to be excavated? I am concerned that if too much is removed, there may not be enough tooth structure left.
What are the recommended treatment options in such cases? The waiting period for treatment can be quite long, which makes it easy to overthink the situation.
I hope the dentist can provide some advice for my reference.

Li Qiuqiu, 30~39 year old female. Ask Date: 2021/03/02

Dr. Lin Jiayong reply Dentistry


Hello: It is advisable for the dentist performing root canal treatment and the one making dentures to be in the same medical facility (either the same clinic or hospital).
After completing the root canal treatment, it is recommended to wait about a month to ensure there are no issues before proceeding with the placement of a post.
It is best to discuss the advantages and disadvantages of this treatment plan (such as insufficient tooth structure or the possibility of transitioning to dental implants) with the treating dentist.
This is a response from Dr.
Lin Chia-Yung, Department of Dentistry, Taichung Hospital, Ministry of Health and Welfare.

Reply Date: 2021/03/02

More Info


When considering the options between root canal treatment and dentures, it's essential to understand the implications of each choice, especially in the context of your dental history and current condition. Given that your front teeth have undergone root canal treatment over 20 years ago and are now showing significant discoloration and structural compromise, you are facing a critical decision regarding the future of your dental health.

Root Canal Treatment (RCT):
Root canal treatment is designed to save a tooth that is infected or has damaged pulp. The procedure involves removing the infected or damaged pulp, cleaning the inside of the tooth, and then filling it with a material to seal it. If your teeth have been previously treated but are now showing signs of failure (like discoloration and significant filling material), a retreatment may be necessary.
1. Retreatment Considerations: If the tooth structure is still viable, retreating the root canal can be a good option. However, if the tooth is severely compromised, the success of the retreatment may be limited. The dentist will evaluate the extent of decay and the remaining tooth structure. If there is enough healthy tooth left, a post (often referred to as a "pin" or "dental post") can be placed to provide support for a crown after the root canal is completed.

2. Post Placement: The post is typically placed after the root canal treatment and before the final restoration (crown). It helps to anchor the crown securely to the remaining tooth structure. However, if there is minimal tooth structure remaining, the effectiveness of the post may be compromised, and this could lead to further complications.

3. Risks of RCT: If the tooth is too damaged or if the retreatment fails, you may face the risk of needing extraction. In such cases, the tooth may not be salvageable, and extraction would lead to the consideration of dentures or implants.

Dentures:
Dentures are a prosthetic solution that replaces missing teeth. They can be complete (replacing all teeth) or partial (replacing some teeth). If your teeth are deemed non-restorable after evaluation, dentures may be the best option.

1. When to Consider Dentures: If the structural integrity of your teeth is too compromised to support a crown or if retreatment of the root canal is not feasible, dentures can provide a functional and aesthetic solution.
2. Impact on Quality of Life: While dentures can restore function and appearance, they do require adjustments and can sometimes be less comfortable than natural teeth. Additionally, they may need to be replaced or relined over time.

3. Implants as an Alternative: If you lose your teeth, dental implants could be an alternative to dentures. Implants are surgically placed into the jawbone and provide a more permanent solution, mimicking the function of natural teeth. However, they require sufficient bone density and health, which may not be present if teeth are lost due to decay or other issues.

Final Considerations:
Given your situation, it is crucial to have a thorough discussion with your dentist about the condition of your teeth, the potential for successful retreatment, and the implications of each option. If your dentist suggests that the remaining tooth structure is insufficient for a post or crown, it may be wise to consider dentures or implants as a more viable long-term solution.

In summary, the decision between root canal treatment and dentures hinges on the condition of your remaining tooth structure, the extent of decay, and your overall dental health. It is advisable to seek a second opinion if you feel uncertain about the recommendations provided, and ensure that you are comfortable with the treatment plan moving forward.

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