Everyone who’s been through a session of cavity fillings at the dentist office knows how unbearable it can be. That’s why it’s a relief to hear that researchers have developed a treatment that can help tooth cavities heal without any fillings. The treatment, which is made of peptides, helps remineralize tooth enamel, encouraging it to grow back on its own. The researchers believe their product could be sold as part of a preventative everyday tooth care routine, in the form of a toothpaste or gel, to help reduce the number of expensive trips to the dentist for shallower cavities.