Can Wisdom Teeth Replace Severely Decayed Molars?

Q: Can Wisdom Teeth Replace Severely Decayed Molars?

Hello： It is recommended to first schedule an appointment with a general dentist. <br>Even if the cavity is extracted to create space, there is no guarantee that the wisdom tooth will erupt in the desired position (and if it does, it will require a significant amount of time and

Wisdom tooth filling for the second molar?

Hello, doctor.
Previously, I had severe cavities in the second molars on both sides of my upper jaw, and I underwent root canal treatment for them.
Recently, I noticed that my wisdom teeth have started to emerge, with a part of them already visible in the gums.
I would like to ask if it is possible to extract the decayed teeth to allow the wisdom teeth to grow into the space of the second molars? Would this mean that I would need to extract teeth from both the upper and lower jaws for proper occlusion? Should I see an orthodontist or a general dentist for this issue? Thank you, doctor.

Niming, 10~19 year old female. Ask Date: 2021/08/24

Dr. Lin Jiayong reply Dentistry

Hello: It is recommended to first schedule an appointment with a general dentist.
Even if the cavity is extracted to create space, there is no guarantee that the wisdom tooth will erupt in the desired position (and if it does, it will require a significant amount of time and money).
Additionally, since you mentioned that the cavity has already undergone root canal treatment, it should be possible to preserve it.
I suggest visiting a medical center for a general dental consultation first, and if necessary, it will be easier to refer you to an orthodontist later.
Sincerely, Lin Chia-Yung, Department of Dentistry, Taichung Hospital, Ministry of Health and Welfare.

Reply Date: 2021/08/24

More Info

Wisdom teeth, or third molars, often emerge in late adolescence or early adulthood and can sometimes be a source of dental issues, particularly if there is insufficient space in the jaw. In your case, you are considering whether your wisdom teeth can replace severely decayed molars that have undergone root canal treatment. While it is an interesting thought, there are several factors to consider.

Firstly, wisdom teeth are not typically positioned in a way that allows them to effectively replace molars that have been lost or are severely decayed. The second molars, which you mentioned, are located further back in the mouth, and wisdom teeth grow in the very back of the dental arch. Even if the second molars were extracted, wisdom teeth may not align properly to function as effective replacements. They often do not have the same occlusal surface area or the same functional role in chewing as the second molars.

Moreover, wisdom teeth can sometimes be impacted, meaning they do not fully emerge from the gum line. This can lead to complications such as infection, crowding of adjacent teeth, and pain. If your wisdom teeth are partially erupted or impacted, they may not be able to serve as functional replacements for your second molars.

In terms of dental alignment and occlusion, if you were to extract your decayed molars, it is essential to consider how this would affect your bite. Removing teeth can lead to shifts in the alignment of your remaining teeth, potentially causing further dental issues. If your wisdom teeth were to erupt into the space left by the extracted molars, they might not align properly with the opposing teeth in the upper jaw, which could lead to malocclusion.

For your specific situation, it is advisable to consult with a dentist who can evaluate your oral health comprehensively. They will likely take X-rays to assess the position of your wisdom teeth and the condition of your second molars. Based on this evaluation, they can provide recommendations on whether extraction of the decayed molars is necessary and whether your wisdom teeth can be utilized in any way.

As for whether you should see an orthodontist or a general dentist, it depends on the complexity of your case. If your primary concern is the extraction of the decayed molars and the management of your wisdom teeth, a general dentist can handle this. However, if there are significant concerns about your bite or alignment, an orthodontist may be necessary to address these issues.

In summary, while the idea of using wisdom teeth to replace decayed molars is appealing, it is not a practical solution due to their positioning, potential for impaction, and the need for proper occlusion. A thorough evaluation by a dental professional will provide you with the best course of action tailored to your specific dental needs.

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