Researchers in China have developed a 3D printable bio-active glass that edges closer to bone resilience. In animal tests, it supported bone cell growth longer than plain glass and nearly matched a leading dental implant material.

Both glass and bone share a key trait thanks to their molecular structures. They resist compression better than stretching. But while glass has potential, perfecting the printing process has been a hurdle. Conventional glass 3D printing requires toxic plasticisers and extreme heat above 1093°C, limiting its use in medicine.