I am on tray 21/25 and I noticed that two lower teeth are spliting (up and down on tooth) and I am wondering if any dentist has come across this with thier patients?
Can Invisalign Cause More Problems to Teeth?
Doctor Answers 2
Splitting of teeth during invisalign
What you are describing is certainly not normal and I would call your dentist and have him take a look at what your issues are. Splitting of teeth is not normal in any way shape or form