An Alternative to
Traditional Braces
Invisalign uses clear tray aligners instead of metal wires and brackets to straighten teeth. The aligners are constructed of a solid piece of plastic strong enough to shift the teeth and move them into the correct position. Every one or two weeks, the patient receives a new tray with an updated aligner. Each tray will feel slightly different as it shifts and moves the teeth.
The idea of using removable aligners to adjust the teeth is not a new concept. The idea was first introduced in the 1940s. Additional improvements were made through the decades, though the technology did not improve until the 1990s. The creators of Invisalign developed their mass-market system in 1999.
"Invisalign uses clear tray aligners instead of metal wires and brackets to straighten teeth."