Round, Square, and Rectangular archwire are formed from high quality, high-luster Type 304VSS wire. Tight controls ensure consistent shape and flatness. High tensile strength and high modulus of elasticity. Straight lengths produced from high quality Type 302SS.

Stainless Steel

All of Ortho M stainless steel wires are diamond drawn to exacting tolerances guaranteed at ± .0005". Stringent quality control and testing assure our wire will maintain PSI rating batch after batch. All arches are mid-line etched 3 marks for upper and 1 for lower.


Our Stainless Steel arches are produced of high quality medical material with highly polished surfaces to provide reduced friction between bracket and arch. Their high forces are well-suited for stabilizing positioned teeth during mid to late stages of treatment. Rectangular wires offer precise torque control for these same stages. 

• Superior smooth, bright finish. 

• Precise shape and flatness of arches is ensured through tight production control. 

• Best suited as finishing wire, as forces drop quickly as teeth move. 

• Easy bend placement.

• Good corrosion resistance. 



Stainless Steel wire offerings have evolved from the original solid to include various strand options which provide more flexibility and lighter forces.


Round, Square, and Rectangular archwire are formed from high quality, high-luster Type 304VSS wire. Tight controls ensure consistent shape and flatness. High tensile strength and high modulus of elasticity. Straight lengths produced from high quality Type 302SS. Medical grade 304V Stainless Steel material (70% Fe, 19% Cr, 9% Ni, 1.5% Mn, 0.5% Si). These archwires can be used throughout treatment but are best suited for mid- to late stages of treatment.

*Superior surface finish.                 

**orces drop quickly; best suited as a finishing wire.

***Easy to bend.

****reater patient discomfort when used in early treatment stages.


A precise heat treatment of solid stainless steel wire produces slightly higher force levels.

*Approximately 5% greater tensile strength than Stainless Steel Solid Bright wires.

**Subtle, golden finish.

***ame characteristics listed above for Stainless Steel Solid wire.


Arch Forms NATURAL AND OVOID
Solid Stainless Steel wire is also available in 14 inch lengths for custom-forming appliances.


Archwire Sizes

Round:.012   .014   .016   .018   .020

Square:.016 x .016   .017 x .017   .018 x .018   .020 x .020

Rectangle:.016 x .022   .016 x .025   .017 x .022   .017 x .025  .018 x .022   .018 x .025   .019 x .025   .021 x .025



Nitinol (Nickel Titanium) Archwires
All of Ortho M nickel titanium products have been specially designed to help the clinician in perfecting his or her specific techniques. The clinician will optimize the treatment time by selecting the correct nitinol product for the specific need and therefore reduce patient chair time. 


Super Elastic Nitinol
The Superelastic wire has a moderate, consistent force that provides a great avenue for early to mid-stage treatment. It provides slightly less force than our Black Satin wire, and is fully austenitic at room temperature. Due to its high flexibility and resiliency, the Superelastic wire recovers beautifully from bends and deformation of angles up to 45°, and even up to 75° in some cases!  

• Nickel Titanium Alloy 

• Highly flexible. • Excellent resiliency. 

• Greater patient comfort than with stainless steel wires. 

• Light continuous force for enhanced treatment results. 

• May place limited permanent bends for a wide variety of treatment needs. 

• 100% quality control inspected for consistent, repeatable results. 

• Smooth bright finish for reduced bracket friction and more efficient tooth movement.

• Square and Rectangle wires offer the ability to simultaneously level and add torque and rotation earlier in treatment, which is more efficient than treatment with stainless steel. 


Nickel Titanium (NiTi)

Superelastic and Shape Memory characteristics provide greater patient comfort, easier ligation, and longer activation time. Our Z-bend test now provides a good visual of these wire aspects.

Moderate forces and a longer activation range allow Nickel Titanium rectangle wire to be used earlier in treatment and to move teeth over a longer period of time.


Nickel Titanium wire with consistent Af performance and moderate forces. The ligating and tooth-moving forces of Ultra Therm Plus fall between our moderate force Superelastic 1 and light force Ultra Therm wires. This is an easy wire to work with plus the optimal forces deliver great results!

*Forces fall directly between Superelastic 1 and Ultra Therm wires, providing optimal midrange load characteristics.

**Very consistent Af of 65-75°F (18.3-23.9°C). Every production lot of Ultra Therm Plus is water bath tested to verify the Af.

***Ultra Therm Plus wire is slightly thermal at room temperature for easy ligation.

****Responsive to chilling.

*****Excellent resiliency.


The moderate, consistent force exhibited by Superelastic (SE1) wire is perfect for early- to mid-stage treatment. This wire has a polished finish and exhibits high flexibility and resiliency.


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