Hi Joel
I have seen this study and unfortunately, while these numbers are discouraging, there are practitioners such as myself that find more consistent results.
To quote Willy Dayan, a speaker at the Invisalign Orthodontic Summit, you have to think like plastic. Too many Invisalign certified providers do not understand the major differences between moving teeth with plastic vs metal/ceramics.
I do not challenge the fact that the numbers in the study are accurate. I do, however, feel that there are too many people using Invisalign without a true understanding of how it should be used. Furthermore, many of the clinchecks that come back show a lot of intercanine expansion, which likely contributes to relapse.
A prudent practioner would not violate commonly accepted orthodontic principles but simply look at Invisalign as an alternative way to provide optimum care.
