Is It Safe to Leave a Small Tooth Root After Wisdom Tooth Extraction?

Retained root after wisdom tooth extraction?

Doctor, I recently had my lower left wisdom tooth extracted.
It was a horizontal tooth with a hook, and after the extraction, there is a small piece of the tooth root left inside.
The dentist was only able to remove one of the two roots.
When I asked if the remaining root could be taken out, the doctor said it was too small (about 1 to 1.5 mm) and that removing it would require grinding away a significant amount of bone.
Additionally, the area was difficult to see, and if there was too much bleeding, it might not be worth the effort, especially since there was a risk of damaging the nerve.
The doctor mentioned that the root left inside would gradually be absorbed by the bone.
Is this true? How long does this process usually take? Thank you.

Wang, 10~19 year old female. Ask Date: 2015/07/18

Dr. Zhang Xiangyuan reply Dentistry

Dear users, if the broken root of the tooth is very small and there are practical difficulties and risks associated with its removal, it is recommended to keep monitoring the situation.
If you experience pain or any symptoms in the future, please consult your dentist for further examination and treatment.
Thank you for your inquiry.

Reply Date: 2015/07/18

More Info

Leaving a small tooth root after a wisdom tooth extraction can be a common scenario, especially when the root fragment is small and poses a risk if attempted to be removed. In your case, the dentist assessed that the remaining root fragment, measuring about 1 to 1.5 mm, was too small to safely extract without causing potential complications, such as damaging surrounding bone or nerves. This decision is often made based on the principle of "do no harm," which is a fundamental tenet in medical practice.

When a small root fragment is left in the jaw, it is generally considered safe, provided that there are no signs of infection or other complications. The body has a remarkable ability to heal and adapt, and in many cases, the remaining root can be absorbed by the surrounding bone over time. This process, known as osseointegration, can vary in duration depending on several factors, including the individual's healing capacity, the size of the root fragment, and the overall health of the surrounding tissues. Typically, this absorption process can take several months to a year.

However, it is crucial to monitor the area for any signs of complications, such as persistent pain, swelling, or infection. If you experience any of these symptoms, it is essential to consult your dentist or oral surgeon for further evaluation. They may recommend imaging studies, such as X-rays, to assess the situation and determine if any intervention is necessary.

In terms of oral hygiene, it is important to maintain good dental care practices even after a tooth extraction. This includes regular brushing and flossing, as well as routine dental check-ups. Keeping the area clean can help prevent infection and promote healing. If the root fragment is small and there are no complications, it should not significantly impact your ability to maintain oral hygiene.

If you have concerns about the remaining root fragment or if it causes discomfort, it is advisable to discuss these with your dentist. They can provide personalized advice based on your specific situation and may suggest follow-up appointments to monitor the healing process.

In summary, leaving a small tooth root after wisdom tooth extraction is generally safe, and the body can often absorb it over time. However, it is essential to remain vigilant for any signs of complications and maintain good oral hygiene practices. If you have any concerns, do not hesitate to reach out to your dental care provider for guidance.

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