From Medical News Today:
New stem cell studies at the University of Maryland Dental School demonstrate that surgeons could one day routinely use strong, moldable, and injectable pastes to regenerate needed bone tissue to repair broken bones, fractures, genetic defects, even combat bone wounds. . . The Dental School presentation showed that human stem cells seeded in a tissue engineering scaffolding exhibited “excellent attachment and osteogenic differentiation,” which is the process of laying down new bone material.
The researchers said the new findings buoy hopes that an injectable paste of stem cells will be available one day to fill any shape of cavity from bone defects, breaks or wounds by regenerating needed bone tissue. In test tube studies, stem cells from bone marrow, when placed into an injectable scaffold of calcium phosphate and chitosan, started growing and forming minerals needed for new bone tissue.

Of course, if there's any references to this story in the mainstream media, they'll leave out the modifier "adult", implying to the average person that embryonic stem cells are responsible for the breakthrough.