SmartArch is a new way of thinking about orthodontic treatment planning. It’s based on the biomechanics of tooth movement and concepts of variable stiffness archwire pioneered by Dr. Charles Burstone and developed by Dr. Rodrigo Viecilli.
NEW Whitepaper: Introduction to the technological and clinical benefits of SmartArch
The 3-bracket bend test accurately reflects the force that is delivered by the archwire by simulating a 3-tooth system. The loading/unloading curves correspond to the color coded section of the archire.
At the heart of SmartArch technology is the Smarter Alloys’™ process for programming the stiffness of superelastic wires. This proprietary technology enables complex stiffness profiles along the length of the wire. The result is an archwire which can express a range of continuous superelastic forces for similar activations. Using this technology, SmartArch wires are programmed with a stiffness profile that delivers the ideal forces to each tooth in the arch.
Targeted Force Control
Other multiforce archwires are manufactured using selective heat-treating processes which can produce three stiffness regions gradually increasing anterior to posterior. Due to differences in interbracket distance and the effects of bending moment, these multiforce wires do not deliver ideal forces based on tooth support. With SmartArch, the wire stiffness can be programmed with sub-millimeter resolution, enabling each tooth to be targeted with biomechanically optimized force.
Ideal Physiological Forces
Tooth movement is the biological response to stresses in the cementum, periodontal ligament and bone resulting from forces applied by the archwire. At low stress levels, bone resorption is slow to occur and tooth movement is slow. At high stress levels, undesirable tissue changes (aseptic necrosis and hyalinization) result in delayed tooth movement. At optimum stress levels, maximum tooth movement and remodelling occurs. As stress is a function of the periodontal ligament root support, optimal tooth movement requires that the force expressed by the archwire be targeted. The SmartArch force profile is based on the finite element modelling work of Dr. Rodrigo Viecilli of the dentoalveolar complex to determine the ideal force for each tooth in the arch for movement and retention.
Ideal forces are related to interbracket distance and periodontal ligament root support.
The SmartArch Universal Profile
The SmartArch Univeral stiffness profile has been biomechanically engineered to express the ideal forces for each tooth based on typical interbracket spacing along the arch. Using the Copper Ni-Ti alloy system for low hysteresis, SmartArch Universal is a 0.016″ (0.406 mm) round wire programmed to deliver between 80 gf and 200 gf in an archform comparable to Damon®. The SmartArch Universal profile consists of maxillary and mandibular archwires and is ideal for most cases.
SmartArch is a quantum leap forward in orthodontic technology that will revolutionize the way you think about archwires in your treatment planning. From the use of the latest in superelastic materials, to the high precision programming process, to the advances in computer simulation and use of instrumented testing, SmartArch is the result of radical innovation in the state-of-the-art. The future of orthodontics is SmartArch.
SmartArch stiffness profiles are calculated using three-dimensional finite element analysis.
SmartArch wires are validated with using OSIM, three-bracket bend tests and industry standard procedures.