RT Book, Section A1 Reed, Lawrence S. A1 Fripp, Vikisha A2 Grant, Robert T. A2 Chen, Constance M. SR Print(0) ID 1175919031 T1 Injectable Fillers T2 Cosmetic Surgery YR 2010 FD 2010 PB McGraw-Hill Education PP New York, NY SN 9780071470797 LK dermatology.mhmedical.com/content.aspx?aid=1175919031 RD 2024/03/29 AB The role of injectable fillers in soft tissue augmentation continues to expand. Ideally, an injectable implant should not cause a significant inflammatory response, be easily introduced into the recipient site, and produce an acceptably long period of volume retention. There are a plethora of agents being used for soft-tissue augmentation (Table 4–1). There are four types of semipermanent and permanent injectable fillers currently in use: polymer gels (silicone), nondegradable polymer microspheres (ArteFill), slowly degradable polymer microspheres (Sculptra and Radiesse), and autologous fat. The nonpermanent fillers are the hyaluronic acids and collagen derivatives, which are enzymatically degraded and offer short-term results. Determining the ideal filler depends on the patient’s areas of concern and the condition of the skin.