Screw
https://www.scribd.com/document/998467437/PDO-Thread-Treatment-for-Aging-Signs-A-Strategic-Roadmap-168870
Screw and double-screw PDO threads add volume by creating a spring-like scaffold that increases support in targeted hollow areas.
Screw and double-screw PDO threads add volume by creating a spring-like scaffold that increases support in targeted hollow areas.