Pack of 2 springs, 18 cm long
 
In superelastic nickel titanium alloy, they
have always been used in orthodontic
treatments. These springs combine the
characteristics of coil spring design with
the non-deformable properties of superelastic
MEMORIA® alloy. Available open
for compressions and gain in space, closed
with wound ends for use with hooks
of tubes and brackets.
The type with a ligature wire allows spaces
wider than 15 mm to be linked.