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Scientists Regrow Teeth in Lab Using Human Cells

Researchers at King’s College London have successfully grown human teeth in a laboratory using a patient’s own cells. This development could completely change the way dental care is done in the future, offering a natural solution to tooth loss. Instead of using fillings, dentures, or implants, people might one day be able to regrow their own real teeth.

This research was done in partnership with Imperial College London. Scientists managed to recreate the same environment that the body uses during the early stages of tooth development. This helped the cells communicate and begin the process of forming new teeth. This process could be the foundation of future dental treatments that are longer lasting, safer, and more natural.

Dr. Ana Angelova-Volponi, the director of regenerative dentistry at King’s College London, said this discovery has the potential to revolutionize the entire field of dental care. For the first time, researchers created a lab environment where tooth cells could interact just like they do in the human body. This allowed them to grow a structure that closely resembles a real tooth.

The research team is now exploring two methods for using this technology in real-life treatments. One method involves placing early-stage tooth cells directly into a patient’s jaw. These cells would then continue to grow naturally inside the mouth. The second method is to grow the entire tooth in a lab and then transplant it into the patient’s mouth. Both approaches aim to restore natural teeth without the need for artificial materials or invasive surgeries.

Human Teeth grown in lab
Xuechen Zhang looking at tooth cells on a computer. (source kcl)

Tooth loss in adults is a common problem caused by decay, injuries, or disease. Currently, dentists treat it using artificial solutions like fillings, crowns, or implants. However, these options have their downsides. Fillings can weaken the tooth over time, and implants require surgery, which may not always work well for every patient. These treatments also do not function exactly like real teeth and can wear out or cause other problems later on.

Dr. Angelova-Volponi explained that lab-grown teeth could solve many of these problems. Because the teeth are grown from a patient’s own cells, the body is less likely to reject them. These bioengineered teeth can also adapt to changes and repair themselves just like natural teeth, something that fillings and implants cannot do.

Researcher Xuechen Zhang from the Faculty of Dentistry, Oral and Craniofacial Sciences at King’s College also explained why this new method is better than current options. He said that fillings often need to be replaced after some time and can lead to further tooth decay or sensitivity.

Implants, while helpful in some cases, are still artificial and involve complicated procedures. In contrast, lab-grown teeth offer a longer-lasting, biologically friendly alternative that behaves just like a real tooth.

The team created a special material in the lab that mimics the natural environment of early tooth development. This helped the cells send signals to each other slowly and correctly, unlike earlier attempts that failed because the signals were sent too quickly or all at once. By adjusting the materials and conditions in the lab, the researchers successfully got the cells to start forming a tooth.

This study is a result of over 10 years of research. The next big step is to test this technology on living patients through clinical trials. Scientists want to see which method is safer and more effective — placing the young tooth cells directly into the mouth, or growing the entire tooth in a lab first.

If these trials are successful, patients in the future could receive custom-grown teeth made from their own cells, reducing the risk of rejection and avoiding invasive surgeries.

Dr. Angelova-Volponi said this is only the beginning. As more progress is made, this technology could completely transform dental care. It would give people a more natural and long-term solution to tooth loss, one that is safer, stronger, and much more like having their own real teeth again.

The research team believes that this breakthrough could eventually help millions of people around the world. The ability to grow teeth from a patient’s own cells could bring us closer to a future where losing a tooth doesn’t mean living with artificial replacements but growing a new one instead.

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