A Tie Wire (also called a Wire Ligature or Metal Ligature) is a thin metal wire used in place of an elastic ligature. It is tied and twisted in place.
Help! Did I Stain My Dental Braces? - ArchWired
Help! Did I Stain My Braces? - Biermann Orthodontics
Placement of the archwire and color ties
Stainless steel ligatures in orthodontic treatment
Terminology
What Type of Dental Braces Are Best? - ArchWired
Types of Braces for Teenagers - Biermann Orthodontics
Orthodontics - Wikipedia
A Brief History of Braces – Couser Orthodontics
TruForce Stainless Steel Retraction Archwires - 2 Keyhole, 4 Keyhole, T-Loop Wire - Ortho Technology
Orthodontic Braces