Yes, you can extrude teeth with INVISALIGN if they are too short. While it iseems to be easier to INTRUDE teeth with Invisalign, there are new power ridges onthat can be used to help move teeth. Sometimes even tilting then slightly inward can make then look longer.
Can Invisalign Cosmetically Extrude Front Teeth if They Have Been Contoured Too Short?
Doctor Answers 4
Invisalign can extrude the teeth but may not be a complete solution
If you bring the teeth down with invisalign, the teeth still may not be quite the right shape, having been filed down a bit. Be sure to choose a dentist who has done extrusion with Invisalign before and who will be ready to offer help with further contouring if needed or restorative treatment if the contouring you had done is excessive. As stated here previously, extrusion is not too predictable with Invisalign, but can be done. Best wishes!
Slight Extrusion is Possible with Invisalign
Extrusion is one of the limitations of Invisalign. But slight extrusive movements are possible. It might require some small tooth colored attachments or buttons on your teeth or some slight re-contouring of the sides of your teeth. A consultation with a skilled Invisalign provider will help you know if it is possible.