All you need to know about aligners & attachments biomechanics (part 2) 

this video simplifies how aligners work, and explains the principle of attachment use.
The following music was used for this media project:
Music: Joy At Work by MusicLFiles
Free download: filmmusic.io/s....
License (CC BY 4.0): filmmusic.io/s...
Artist website: cemmusicprojec....
License
Creative Commons Attribution license (reuse allowed)