Correspondence: Dr Alam, Department of Dermatology, Northwestern University, 675 N St Clair St, Suite 19-150, Chicago, IL 60611 (email@example.com).
During the last 10 years, numerous soft tissue augmentation materials have been developed for correction and filling of photoaging-related facial lines and wrinkles. These novel materials, which are most often used for perioral and glabellar rhytides, have usually been injectable pastelike liquids that can be propelled directly and with minimal risk and discomfort into the skin or subcutis using a needle and syringe apparatus. Intuitively, achieving camouflage by extruding a line of substance into a skin furrow is analogous to using moldable putty to smooth a depression.
Alam M, Danahey DG. Permanent Injectables for Soft Tissue AugmentationAvoiding Misinformation and a Reprise of the Breast Implant Debacle. Arch Facial Plast Surg. 2005;7(6):370-373. doi:10.1001/archfaci.7.6.370