However, while your teeth may have not changed since then, the features offered by Invisalign have. In 2009, the company introduced many new features that allowed Invisalign to begin correcting tooth-alignment problems that it could not successfully correct before the new features were available. One of these new options is called "power ridging," and these ridges allow orthodontists to place more force on teeth when needed to straighten them. There is also a new feature that allows Invisalign to provide a greater movement of teeth at the roots, which was once a challenge to orthodontists using the …show more content…
Attachments are very small blocks of tooth-colored dental resin that are adhered directly to teeth that need it, and the shape and position of the button can help rotate teeth into position when combined with the pressure from the clear aligners. Buttons are also small pieces of resin placed on teeth that are used to anchor traditional dental elastics to. These elastics, or rubber bands, help correct bite problems that the clear aligners on their own cannot