Shape Memory Heat activated (Thermal) Archwires
 

These archwires have martensite present at room temperature, but go through a transformation change to austenite, which strengthens the wire once placed in the mouth. Slightly soft outside the mouth for easier ligation, but elastic modulus increases to produce a fully austenitic wire once in the mouth. Thermal archwires are the wire of choice for severe malocclusions, and offer earlier rectangular wire engagement. . It is a very gentle wire and therefore very comfortable for the patient. A .016X.022 rectangular heat activated NiTi archwire has approximately the same force as a .016 round regular superelastic NiTi arch. Softness of wire makes it more vulnerable to permanent deformation compared to superelastic NiTi wires. But if the wire is not deformed beyond the yield point while ligating permanent deformation is avoidable.

Available in Natural Form and OrthoformIII shapes

All archwires are having distinct and permanent etched markings for midline. While upper arches have three midline marks, lower ones have one midline etch mark.

Dimpled Midlines: A horizontal dimple is permanently heat set into the archwire to ensure that they will not move once placed in the mouth and that they will not have cold worked weak spots.

All wires have Ultra smooth finish for more aesthetic value and minimum friction

The following sizes are regularly available.

Round: 012, 014, 016, 018, and 020

Rectangular and square: 016x016, 016x022, 017x025, .018x.018, 018x025, 019x025, and 021x025