Self-Ligating Brackets Overview

What Are Self-Ligating Brackets?

Self-ligating (SL) brackets are a modern evolution of the edgewise bracket system that eliminate the need for elastic or metal ligatures (ties) to hold the archwire. A built-in sliding door or flexible clip secures the wire instead.

Key Benefits

• No ligatures → cleaner appearance & less plaque
• Lower friction → potentially faster early tooth movement
• Shorter chair time (30–50% less per visit)
• Available in metal, ceramic, or hybrid

Two Main Types

Type	Mechanism	Friction	Wire Engagement	Examples
Passive SL	Rigid clip/door	Very low	Wire slides freely (like a tube)	Damon, SmartClip, Carriere SLX
Active SL	Flexible clip presses on wire	Low–moderate	Applies light force for rotation/torque	In-Ovation R, Speed, Quick

Self-Ligating vs Conventional Brackets

Aspect	Self-Ligating	Conventional (Ties)
Treatment duration	2–4 months shorter1	Standard
Chair time	20–40% less	Longer
Hygiene	Better (no ties)	More plaque
Cost	15–30% more	Lower
Torque control	Active SL excellent; Passive may need high-torque Rx	Full with steel ligatures