Invisalign only works as planned if you actually wear it 20–22 hours a day. Here's what the compliance tools do and how to build the habit without much effort.
Invisalign's predictability depends heavily on wear time. Missing the recommended 20–22 hours a day — even by an hour or two, consistently — is one of the most common reasons treatment takes longer than originally planned.
What Chewies Actually Do
Chewies are small, cylindrical foam pieces you bite down on for a few minutes after inserting a new aligner. They help seat the aligner fully against each tooth, improving fit and reducing the small gaps that can slow tooth movement.
Invisalign Teen's Built-In Compliance Indicators
Invisalign Teen aligners include small blue dots that fade with wear. If the dot is still visibly blue after the expected wear period, it signals to parents and the orthodontist that wear time may be falling short — a useful, judgement-free way to track compliance for younger patients.

