Even Force™ Springs
Our unique NiTi extension springs exhibit near-constant force through their return and maintain that force to 3X extension of their active coil length without deformation! Available in 9 and 12mm lengths and five force levels.
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Everything you need to put the spring back in your step on those sales calls!
Forces are everything in a spring. So, how do you choose? Here’s the guidance you need to move forward.
For opening, closing, and everything in-between!
Direction of Force
Coil springs can be generally categorized into three types: Compression, Extension, and Distalizing.
Compression, or Open Coil, springs are used to create spaces between teeth or, more simply, to move points away from one another. The coils are compressed when loaded and provide forces ‘outward’ to create and maintain needed space.
Compression springs are available in Nickel Titanium and Stainless Steel.
Ultimate offers many products to meet specific needs. Among them is the Neet Separating Spring, a specialized Nickel Titanium compression spring used to create banding space.
Extension, or Closed Coil, springs are used to close spaces between teeth or, more simply, to move points closer to one another. The coils are extended when loaded and provide retraction forces to close spaces.
Extension springs are available in Nickel Titanium and Stainless Steel.
The Class II Spring is a specialized Nickel Titanium extension spring, used for easy ligation in Class II correction treatment.
Distalizing, or Open-Closed Coil, springs are specialized springs to distalize molars. The springs are compressed when loaded and exert forces against the molars to tip or move them in the proper direction.
Back to TopDistalizing springs are available in Nickel Titanium.
Force Factors
There are many factors involved in determining the force delivered by a spring. The base material and its processing, wire size, number of active coils, and length of extension in use, all play a part in the process.
Ultimate offers a wide variety of springs so that your doctor can select those that suit his/her specific needs.
Nickel Titanium Springs provide comfortable, predictable forces during treatment.
Nickel Titanium Compression Springs are designed such that the loading force is exhibited while being compressed, and the tooth-moving force is expressed as the spring returns. Compression springs are offered in two force types, Variable and Superelastic.
Compression Variable force: Variable force springs are designed so that the tooth-moving force gradually decreases as the spring returns to its nominal length.
Compression Superelastic force: provides a flatter force profile upon return than variable force springs. The return profile indicates the clinical force applied to the patient. Many doctors find this flatter profile advantageous when loading springs. Note that the force drops significantly as they near their pre-activation state.
Nickel Titanium Extension Springs are designed such that the loading force is exhibited while being extended, and the tooth-moving force is expressed as the spring returns. Extension springs are offered in three force types, our premium Even Force, Variable, and Superelastic.
Even Force™ Springs: Our new, premium NiTi extension spring with near-constant tooth-moving (return) forces throughout their activation range. Equally compelling is the resiliency of these springs as they maintain this near-constant force to 3x the extension of their active coil length without deformation.
Even Force Springs: are available in five near-constant force levels with no overlap in tolerance bands and large extensions without deformation.
Extension Variable force: provide gentle forces that gradually decrease during retraction.Superelastic force: provides a flatter return profile than the variable force spring, but no where near the near-constant force exhibited by Even Force Springs. As well, their forces drop significantly as they near their pre-activation state.
Both Extension Variable and and Superelastic force NiTi springs exhibit limited extension and resiliency in comparison to Even Force Springs, though they are more resilient than Stainless Steel springs.
Forces exhibited by our Nickel Titanium Compression and Even Force Extension springs may be found in their respective Force Charts.
Stainless Steel Springs, in comparison to Nickel Titanium springs, exert high initial forces and will commonly take a permanent set. They are offered in both Compression and Extension versions.
When you need to know just what a specific spring can do, refer to its product page in the Spring section. Product features and benefits can be found for each of our offerings.
To clarify things a bit further, we offer Our Support. Here you can find FAQ’s, Helpful Links, and even a Video and Document Library. You can find a Glossary and more in our Reference Sheets, too!
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