Straightening Teeth With Invisalign Part II

Competing Products vs Invisalign

Invisalign was introduced to the world in the late 1990’s.  Prior to its arrival dental labs had been making plastic overlays to move teeth small distances, for many decades, and they still do.  But those labs do the work by hand on physical models of the teeth, actually cutting the teeth off the models and re-positioning them, and making aligners to fit those newly re-positioned models, and the reliability of that method was and is limited to moving front teeth only, and only for up to 5 stages.  The primary patent that gives Invisalign its advantage is that the tooth movement is first done virtually in the computer using unique proprietary software, and then they can manufacture a large number of progressive stage models, moving both front and back teeth simultaneously, and the method has proven to be very reliable in producing the desired results. 

 

©2011  James E. Eckhart, D.D.S.,  Inc.

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