New dental technique helps regrow roots in young teeth

This study tested three different materials (blood clot, platelet-rich fibrin, and concentrated growth factor) combined with two types of rinses to help regrow root tissue in 30 immature permanent teeth with dead nerves. Participants aged 9 to 25 were followed for 12 months using special X-rays to measure root growth, tip closure, and healing of infection. The goal was to find the best combination to save teeth that would otherwise be lost.