Have you ever imagined that teeth can repair themselves like skin? Although we still rely on traditional fillings and crowns to repair cavities, the scientific community is actively exploring a new treatment method – through stem cells and regenerative medicine, teeth can “grow back” by themselves.
Victoria Veytsman, DDS, a cosmetic dentist in New York, said: “This is a very attractive research field.
Dental tissue engineering and regenerative technology are at the forefront of medical innovation.” Currently, these studies are focused on developing “living fillers” – a material composed of stem cells and biological scaffolds that can activate the body’s natural repair mechanism and replace traditional artificial fillers.
Stem cells are special cells with the ability to self-replicate and multi-directional differentiation, which exist in adults and embryos.
They can transform into a variety of cell types in the body, which makes them have great potential in repairing tissue damage.
According to the California Institute for Regenerative Medicine, the most mature application of stem cells is for bone marrow transplantation, but their application in the dental field is still in the early stages of research and development.
“Stem cells alone are not enough to repair teeth; they need structural support to form the correct tissue,” says Salvator La Mastra, DDS, a cosmetic dentist in Dallas, Texas.
This is where current research is focused—creating a “scaffold” or “matrix” that guides stem cells to grow into enamel and dentin.
The current treatment process still involves removing the decayed tissue first and then filling the cavity. “Traditional restorative materials, such as amalgam and composite resins, are safe, long-lasting, and will not decay again,” Dr. Weitzman explains.
In contrast, the long-term stability of living fillings has not been fully verified. “While regenerative materials are promising, they may still cause malocclusion or aesthetic issues,” La Mastra adds.
In addition to repairing cavities, stem cells have the potential to be used for pulp repair, gum regeneration, and even promote dentin regeneration.
These technologies may one day greatly improve overall oral health. In fact, stem cell banks are emerging to provide a reserve for possible personalized treatments in the future.
“Many patients have begun to ask if their teeth can grow back,” said La Mastra, “but we are not there yet, and real clinical application will take decades.”
Although “living fillers” have not yet entered the dental clinic, researchers are still full of hope for the future. The addition of artificial intelligence has also brought new impetus to regenerative dentistry.
“AI technology is helping us ask more questions, such as: Can we intervene before teeth begin to age?
Can regenerative medicine prevent oral diseases?” Dr. Weitzman said. “Although we are still in the exploratory stage, the combination of AI and regenerative medicine is leading the future direction of healthcare.”