Invisalign Step-By-Step Procedure. Pwdds.com DA: 9 PA: 35 MOZ Rank: 76. Invisalign Step-By-Step Procedure While Invisalign may not seem like a fairly new procedure, and, instead, one that's been in the orthodontic toolbox for some time, the company itself is only 20 years old; Although, since gaining mainstream acceptance around 2004, with new innovative technology emerging within the field ....