Can Untreated Root Canal Issues Lead to Oral Cancer? - Dentistry

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Will untreated root canal disease lead to oral cancer?


Hello Doctor,
1.
Recently, my dentist informed me that one of my teeth, which has previously undergone root canal treatment, has developed a pathological condition in the root.
The tooth has a secondary cavity and the root is decayed.
Since it is not painful, I am considering postponing treatment.
Is there a possibility that this could lead to oral cancer?
2.
The reason for postponing treatment is that if I pursue active treatment, I would need to travel to a teaching hospital in another city, which would require a long commute and significant time investment.
The doctor assessed that even if I undergo re-treatment of the root canal, it may not guarantee healing.
It might be better to wait until the tooth decays completely and then proceed with an implant.
I am concerned about the inconvenience and feel that this might be a more convenient option.
I would like to ask the doctor if this is acceptable.
Thank you!

Ms. M, 40~49 year old female. Ask Date: 2020/11/23

Dr. Zeng Guanghui reply Dentistry


Hello Ms.
M: 1.
A root canal treatment that leads to a reinfection at the apex of the tooth root and decay does not result in oral cancer, but it is still advisable to seek treatment promptly to prevent the infection from spreading.
2.
If the difficulty of retreating the root canal is high, it is recommended to consult a specialist in endodontics at a major hospital for evaluation before deciding whether to retain the tooth.
Director Tseng Guang-hui, Dental Department, Nantou Hospital.

Reply Date: 2020/11/23

More Info


The concern about untreated root canal issues leading to oral cancer is a common one, but it's important to clarify the relationship between dental health and cancer risk. Based on the information provided, it appears that you have a tooth that has undergone root canal treatment and is now experiencing complications, including decay and possible infection.
1. Can Untreated Root Canal Issues Lead to Oral Cancer?
The short answer is no; untreated root canal issues do not directly cause oral cancer. Oral cancer is typically associated with risk factors such as tobacco use, excessive alcohol consumption, human papillomavirus (HPV) infection, and prolonged exposure to irritants. While untreated dental infections can lead to serious health issues, including systemic infections, they do not inherently increase the risk of developing cancer. However, chronic inflammation and infection in the oral cavity can create an environment that may contribute to other health issues, so it is still advisable to address dental problems promptly.

2. Considering Treatment Options:
It is understandable that you may want to postpone treatment due to the inconvenience of traveling to a teaching hospital. However, neglecting a dental issue, even if it is not currently painful, can lead to more severe complications down the line. Infections can spread, leading to abscesses or even systemic infections that could require more extensive treatment. Furthermore, if the tooth continues to decay, it may eventually lead to tooth loss, which would necessitate more invasive procedures like dental implants.

While it may seem easier to wait until the tooth breaks down completely, this approach can lead to more complicated and costly treatments later. It is essential to weigh the risks of delaying treatment against the potential benefits of addressing the issue sooner rather than later.
If the root canal treatment is deemed too complicated or unlikely to succeed, it may be worth seeking a second opinion from another dental professional or a specialist in endodontics (root canal therapy). They can provide a thorough evaluation and discuss alternative treatment options, including extraction and subsequent implant placement if necessary.

In conclusion, while untreated root canal issues do not lead to oral cancer, they can result in significant dental and health complications. It is advisable to seek treatment sooner rather than later to avoid more severe issues in the future. If travel is a concern, consider discussing your situation with your dentist to explore local options or potential referrals to specialists who may be more accessible. Your oral health is crucial, and timely intervention can prevent more significant problems down the line.

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