INFINITY SELF LIGATING BRACKETS WITH FREE TOOL

• Self-ligating brackets (SLB) were developed on the premise that elimination of ligature ties creates a friction-free environment, allows for better sliding mechanics, and may therefore reduce treatment time .
• According to the manufacturers, these self-ligating brackets should not only be easier to handle in the ligation process but also show lower frictional forces than conventionally ligated brackets.

Self Ligating Brackets are classified as:

1. Active:

Active brackets will use a thicker archwire and will deliver more pressure onto teeth, thereby moving them more efficiently to where they ideally should be.
They have a spring clip that stores energy pressing against the arch wire for rotation and torque control in larger dimension arch wires. 

2. Passive: 

Passive brackets are applied and use a smaller size archwire. The smaller archwire creates less friction and will allow your teeth to move more freely. Your orthodontist will most likely use this application at the beginning of treatment. 
They have usually have a slide that can be closed without exerting an active force on the arch wire.