Researchers Develop Revolutionary 3D Printed Coral-Inspired Bone Graft

A team of researchers at Swansea University have 3D printed a coral-inspired bone graft. What’s remarkable? Their study found that the new material not only dissolves naturally in the body after the repair is complete but that it also promotes faster healing.

Bone defects caused by fractures, tumors and non-healing injuries are among the leading causes of disability worldwide. While it is true that bone tissue can repair itself through regeneration, factors like aging, disease or the severity of the defect can slow regeneration down. In the case of large defects, a scaffold or bone graft is necessary to supplement tissue regeneration.

Design of in vitro and in vivo tests (Credits: Swansea University)

Traditionally, doctors use a patient’s own bone (an autograft) or donor’s bone (an allograft) to fill these gaps. But limited supply, risk of infection and ethical concerns make these options less attractive. Synthetic bone grafts exist, but they currently cannot match the performance of natural bone. They either take a long time to dissolve, don’t integrate well or can cause side effects like inflammation. By contrast, the material developed by the Swansea team closely mimics natural bone in both structure and biological behavior, overcoming those challenges.