Working in the O.R. I had the priviledge of seeing cheek up close. The company that sold their product to my hospital implants were made of plastic. They were very firm to touch and really had no flexibility which seemed rather odd to me. They did come in all shapes and sizes. I'm unsure of the costs as the hospital was a level 1 Trauma Center and most of the time the implants were used in trauma injuries to the face.