Invisalign technology has been around since the late 1990s, although the concept of using a series of aligners was first envisioned in the 1940s. The idea had to wait for computer technology to make it a reality. The number of satisfied Invisalign patients increases every year. Today, more than four million patients worldwide have been treated using Invisalign clear aligners. You can feel confident in your decision to schedule an Invisalign consultation with Dr. Cavendish.