Can Wisdom Tooth Roots Continue to Grow for Dental Correction? - Dentistry

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Length of wisdom tooth roots


Eight years ago, the nerve of my first molar was removed.
Recently, I noticed a gum abscess developing around the first molar and I am considering orthodontic treatment to extract the first molar and replace it with a horizontal wisdom tooth.
However, the orthodontist mentioned that the roots of my wisdom teeth are not long enough for the correction.
Is it possible for the roots to continue growing?

Tomm, 20~29 year old female. Ask Date: 2023/08/31

Dr. Lin Jiayong reply Dentistry


Hello: "However, the orthodontist said that the roots of my wisdom teeth are not long enough for orthodontic treatment." It is recommended to consult 2 to 3 orthodontists, and if they all provide similar opinions, it is advisable to consider alternative treatment plans.

Reply Date: 2023/08/31

More Info


When it comes to the growth of wisdom tooth roots, it is important to understand the biological processes involved in dental development. Wisdom teeth, or third molars, typically emerge in late adolescence or early adulthood. By this time, the roots of these teeth are usually fully formed. Once a tooth has erupted and its roots have developed, they do not continue to grow in length. This means that if your orthodontist has indicated that your wisdom tooth roots are not long enough for orthodontic correction, it is unlikely that they will grow further.

In your case, since you mentioned that your first molar had undergone root canal treatment eight years ago and is now experiencing issues such as the formation of a gum abscess, it is crucial to address these concerns before proceeding with orthodontic treatment. The presence of an abscess indicates an infection, which can complicate both the extraction of the first molar and the potential use of the wisdom tooth as a replacement.
The decision to extract a tooth, especially one that has been treated with a root canal, should be made with careful consideration of several factors. These include the health of the surrounding teeth, the condition of the gums, and the overall alignment of your bite. If the wisdom tooth is positioned horizontally, it may not provide adequate support or alignment for the dental arch, which is essential for effective orthodontic treatment.

Moreover, the impact of missing teeth on the surrounding dental structure cannot be overlooked. When a tooth is lost, the adjacent teeth may drift into the empty space, leading to misalignment and potential bite issues. This is particularly relevant in your situation, where you have expressed concerns about the stability of your upper molar due to the absence of the lower counterpart.

In terms of orthodontic treatment, several factors can influence the success of the procedure. These include the health of the periodontal tissues, the amount of bone available for anchorage, and the overall alignment of the teeth. If there are remnants of tooth roots or other dental structures that could interfere with the movement of the teeth, these issues must be addressed prior to starting orthodontic treatment.

If your orthodontist has recommended consulting with multiple specialists, it may be beneficial to seek second opinions. Different practitioners may have varying approaches to treatment, and obtaining multiple perspectives can help you make a more informed decision regarding your dental health.

In summary, wisdom tooth roots do not continue to grow once they have fully developed. If your orthodontist has indicated that your wisdom tooth roots are insufficient for correction, it is essential to explore other treatment options. Addressing any underlying dental issues, such as infections or misalignments, should take precedence before considering orthodontic treatment. Always consult with qualified dental professionals to ensure that you receive the best possible care tailored to your specific needs.

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