What if you knew the tooth your dentist just removed, could one day help repair a damaged nerve, rebuild lost bone, or slow down a disease you have not even been diagnosed with yet?
Every year in the United States alone, roughly 10 million wisdom teeth are pulled, bagged, and thrown away as medical waste. Most patients walk out of the oral surgeon's office focused on the swelling and the pain medication, never knowing what was just lost along with the tooth.
Because inside every tooth, tucked into a soft inner core, lives something scientists are calling one of the most accessible and promising sources of living cells in the human body.
Every tooth has a living center called pulp, a soft inner tissue filled with tiny blood vessels, nerves, and a very special type of cell, stem cells, the body's original builders.
Unlike most cells in your body, which are assigned one fixed job and stick to it for life, stem cells carry the rare ability to transform. They can become bone. They can become nerve tissue. They can become cartilage, muscle, or even eye tissue. They essentially become what the body needs them to become when given the right environment.
What makes wisdom teeth so valuable is a matter of timing. They come in between the ages of 17 and 25, right when these cells inside the tooth are still young, energetic, and at their absolute best. ² Think of them like seeds. A fresh seed carries far more potential than one that has been sitting in a drawer for years.
Once a wisdom tooth becomes infected, heavily damaged, or simply older, the quality of those cells drops significantly. The window does not stay open forever, and for most people, it closes quietly and without warning.
Published research4 highlight that the living cells found inside your tooth carry remarkable potential, not just for your mouth, but for treatments that help the body repair itself, far beyond anything dentistry has traditionally offered. Scientists have been studying these cells for years and what they are finding is genuinely exciting.
Under the right conditions in a laboratory, these cells have shown the ability to grow into:
Bone and jaw tissue. For patients recovering from serious jaw injuries, tumor removal surgery, or significant bone loss, these cells could offer a way to rebuild using the body's own material rather than artificial substitutes. 1
Nerve-like cells. Researchers have shown that these cells can develop into nerve cells that actually fire real electrical signals, the same way the brain and nervous system communicate. Early research is exploring whether this could one day play a role in conditions like Parkinson's disease or recovery from nerve damage.
Eye tissue. Scientists at the University of Pittsburgh demonstrated that cells from wisdom teeth could be converted into corneal cells, the tissue that covers the front of the eye, and successfully placed into the eye without the body rejecting them.2 For millions of people worldwide living with corneal blindness, this kind of research carries enormous hope.
Heart and joint tissue. Early studies have shown improved heart function and the formation of healthy, collagen-rich tissue that closely resembles natural cartilage, pointing toward future possibilities in heart care and joint repair.
Each of these discoveries came from cells that, in most cases, would have been thrown in a bin.
See also: Kylie Jenner Undergoes Stem-Cell Therapy for Back Pain
For a long time, dentistry and medicine have operated in completely separate worlds. Patients move between the two without either side always knowing what the other is doing.
But wisdom teeth are forcing a new and important conversation between the two fields.
Dentists now actively encourage their patients to save the cells from their extracted teeth rather than discard them. 4 This suggestion represents a genuine shift in how dental professionals are beginning to see their role in a patient's overall health. At the same time, published research has shown that injecting these living cells into damaged gum tissue led to real, measurable bone growing back in patients who were suffering from serious gum disease.3 This means these cells are already showing results inside the mouth too, before we even get to the larger medical possibilities.
Here is the part most patients do not find out until it is too late. Once the tooth is removed and discarded, that opportunity is gone. However, if you wish to preserve, once the tooth is extracted, it can be placed in a sterile container and sent to a specialized laboratory within 24 hours. There, the living cells are carefully separated from the rest of the tooth and then kept frozen at very low temperatures until they are needed, preserved safely for many years into the future.²
University of Michigan researchers confirmed that keeping a freshly extracted tooth in a simple saline solution for up to 24 hours does not negatively affect the quality of the cells inside. That means dentists and patients have a real and practical window to make this decision, as long as they know to ask before the appointment, not after.
The younger and healthier the tooth at the time of extraction, the better the cells. That is not a minor detail. It is the entire point.
The research is still moving forward. More work is needed before these cells become part of everyday treatment in clinics and hospitals. If you are between 17 and 25, or if you know someone whose wisdom teeth are coming out soon, one honest conversation with a dentist or oral surgeon before the appointment could matter far more than anyone expects.
References
Luo, L., et al. 2024. “Application of Dental Pulp Stem Cells for Bone Regeneration.” Frontiers in Medicine. https://doi.org/10.3389/fmed.2024.1339573.
University of Pittsburgh School of Medicine. n.d. “Stem Cells from Wisdom Teeth Can Be Transformed into Corneal Cells.” STEM CELLS Translational Medicine. Accessed April 1, 2026. https://www.upmc.com/media/news/wisdom-teeth-stem-cells-corneal.
Huang, R., et al. 2025. “Impact of Allogeneic Dental Pulp Stem Cell Injection on Tissue Regeneration in Periodontitis.” Signal Transduction and Targeted Therapy. https://doi.org/10.1038/s41392-025-02320-w.
Stefańska, Katarzyna, Ana Angelova Volponi, Magdalena Kulus, Jadwiga Waśko, Maryam Farzaneh, Joanna Grzelak, Shirin Azizidoost, Paul Mozdziak, Dorota Bukowska, Paweł Antosik, Maciej Zabel, Marzenna Podhorska-Okołów, Piotr Dzięgiel, Marta Szcześniak, Maria Woszczyk, and Bartosz Kempisty. “Dental Pulp Stem Cells – A Basic Research and Future Application in Regenerative Medicine.” Biomedicine & Pharmacotherapy 178 (2024): 116990. https://doi.org/10.1016/j.biopha.2024.116990.
Kwack, K. H., and H. W. Lee. “Clinical Potential of Dental Pulp Stem Cells in Pulp Regeneration: Current Endodontic Progress and Future Perspectives.” Frontiers in Cell and Developmental Biology 10 (April 11, 2022): 857066. https://doi.org/10.3389/fcell.2022.857066.
