Fully austenitic at room temperature, Force II delivers a heavier force than Force I, although still well below the forces generated by stainless steel. It is an excellent choice when bends are required in the arch wire. The additional stiffness makes it suitable as a retraction arch. It is generally used in beginning to middle treatment stages. Excellent for stubborn rotations.

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Titanium Memory Wire Terminology

Loading force: Force required to deflect or load arch wire into the slot.

Unloading force: Working or rebounding force that moves teeth as the wire is returning to its original form.

Transition force: The difference between loading and unloading forces.

Martensitic state: Cold or softest state of titanium wire. "Martensitic" or thermal arches are in this condition at room temperature.

Austenitic state: Stiffest, most resilient state of titanium wire. "Austenitic" arches are in this state at room temperature.

Transformation: The change from Martensitic to Austenitic state, generally induced by temperature increases.

Superelastic: Highly resistant to permanent deformation and able to maintain relatively constant forces during rebound.

Shape Memory: The ability of a wire to remember its original shape, even after being deformed.