Slight crack on my Invisalign upper retainer. Should I keep wearing it or get a new one? (Photo)

IPR basically aids in the movement of your teeth when space is not available.  I do not generally do invisalign in the anterior as I do not like the look of the teeth after treatment has been completed.  I usually do my IPR in the back where there is easier access and the cases turn...

I think you could have a problem soon with the tracking of your teeth based on your description above.  You only wore Tray 12 for 5 days, not even close to enough movement.  I would have went back to tray 11 and had the orthodontist order you a new 12.  Instead your moved to tray...

I have treated many cases successfully involving lumineered and veneered teeth with the use of Invisalign. Prime cases are when teeth were veneered in a position with no spaces or crowding and the teeth and veneers have shifted since the placement.  

.Better than braces but you really need to address the periodontal disease  Otherwise, the  next straight teeth will be in on your denture.

The anterior open bit is a result of the underdeveloped maxilla that crowds the tongue and creates a small airway. Orthodontics (standard) and Invisalign will not correct underlying cause and will likely relapse. Amputating 4 teeth (four on the Floor) is the worst possible choice as it will...

The disadvantage of removing teeth and not closing the spaces is that adjacent teeth tend to tip/tilt and even over erupt into the spaces.Uprighting molars that have tipped into an extraction space is very difficult with Invisalign. The attachments are not rigid enough and the aligner force is...