Low - power light has been used to enable stem cells to regenerate body tissue . The Indian - led project could signal a range of clinical applications in areas such as restorative dentistry , wound healing and bone formation . Researchers used a low - power laser to stimulate human dental stem cells to form dentin , the hard tissue found in teeth . Current clinical techniques require stem cells to be manipulated in a lab and then returned to the body , but this new technique does n't introduce anything new to the body , so the regulatory and technical hurdles are far lower . Lead author Praveen Arany said that following successful trials on rodents , the next step would be human clinical trials .
Low-power light has been used to enable stem cells to regenerate body tissue. The Harvard-led project could signal a range of clinical applications in areas such as restorative dentistry, wound healing and bone regeneration. Researchers used a low-power laser to stimulate human dental stem cells to form dentin, the hard tissue found in teeth. Current regeneration techniques require stem cells to be manipulated in a lab and then returned to the body, but this new method doesn't introduce anything new to the body, so the regulatory and technical hurdles are far lower. Lead author Praveen Arany said that following successful tests on rodents, the next step would be human clinical trials.