Invisalign Express is intended to fix very minor orthodontic problems using only up to 10 trays; about a third of the trays patients require for full Invisalign. We do not recommend Invisalign Express due to the limitation in the number of aligners and treatment results. We always recommend the full Invisalign to avoid any limitations in treating your particular problem. It is a misconception that the patient will save money by using Invisalign Express. Patients will only end up spending more to fix the problems as a result of the limitations of Invisalign express.