Evolution of wound dressings and their effects on the healing process.

Over the last decade, there has been a rebirth of interest in wound healing research, partly due to advances in biotechnology leading to the feasibility of producing large quantities of pure, human growth factors thought to be important in the healing process and also due to the recognition that certain new dressing materials have a favorable impact in wound healing. This paper describes some of the newer dressing materials and discusses the basis for the biological effects of these products. As progress continues, it is likely that future approaches will combine the use of dressings with drugs or active agents selected to prevent or treat infection, start or stimulate the healing process, or control the production of scar tissue.