Nitinol Open Coil Springs are made from super elastic Nickel Titanium and are designed for continuous tooth movement as well as gentle patient comfort. Nitinol Open Coil Springs are especially efficient in opening space when placed on the archwire and compressed between brackets. The Nitinol Closed Coil Springs is design to close space.

Stainless Steel Open and Closed Coil Springs are made of a hard, tempered wire that provides maximum efficiency for tooth movement and to open or close space.