What are white spots on teeth after Invisalign?

I am a 23 year old male. I had white spots on my teeth after Invisalign. What are white spots on teeth after Invisalign?

They are leftover attachment composites. They need to be removed, polished. Ask your dentist to clean the white spot so it doesn't show.

Hypocalcifications

Hello,

Usually, white spots don’t develop from the Invisalign trays, but from whitening perhaps.
Hope this helps.

They are called decalcification which is that the plaque sat on the teeth too long and the teeth lost their calcium. It is a pre cavity lesion.