De novo grown bone on exposed implant surfaces using photodynamic therapy and recombinant human bone morphogenetic protein-2: case report.

The reconstruction of bone on exposed implant surfaces requires an almost complete elimination of attached bacteria. Only then is new bone growth possible. This case report describes a new way to kill biofilms with photodynamic therapy and to augment bone by using recombinant human bone morphogenetic protein-2. Though the new technique of bone tissue engineering causes some problems, new bone growth on uncovered implant surfaces is successful to a large extent.