title: Biocompatibility of microparticles into soft tissue fillers.
abstract: The increasing need for long-lasting injectable soft tissue fillers for the treatment of wrinkles and folds requires a critical discussion of the biocompatibility on a scientific background. Since biological fillers made of collagen and hyaluronic acid will be resorbed over time, copolymer biomaterials with microparticles have been developed in recent years. The microparticles followed special and essential demands because of the interaction with the tissue. In search of an ideal soft tissue filler substance, a variety of biomaterials with microparticles suspended have been created for injecting into dermal defects, into the urethra of patients with urinary incontinence, and in patients with vocal cord insufficiency. The particles differ in chemical composition, surface structure, surface charge, and particle size and evoke different host reactions, accordingly.
authors.affiliation: Institut for Skin Care Concept, Friedenstr. 29, 56427 Siershahn, Germany. matridex@aol.com
authors.forename: Klaus
authors.initials: K
authors.lastname: Laeschke
mesh_terms: D001672:Biocompatible Materials / Q000008:administration & dosage* / Q000737:chemistry; D003357:Cosmetic Techniques; D005145:Face; D005548:Foreign-Body Migration / Q000503:physiopathology; D006801:Humans; D008863:Microspheres; D010587:Phagocytosis / Q000502:physiology; D011108:Polymers / Q000008:administration & dosage; D019736:Prostheses and Implants; D015361:Rhytidoplasty / Q000295:instrumentation*; D015595:Skin Aging / Q000187:drug effects
chemical_list: D001672:Biocompatible Materials; D011108:Polymers