Screw thread
| Field | Medicine |
|---|---|
| Also known as | spiral thread, tornado thread, double screw
|
Screw threads (spiral / tornado / double-screw) are mono threads coiled around the needle so they occupy a small volume when released. Used in etched nasolabial folds, marionette lines, and neck lines: collagen plus a little bulk, not a hitch.
This wiki's view
A texture/crease tool. Not a facelift. For a hanging nasolabial cheek, see cog thread on the nasolabial fold page.