Tray 50 of 67 doesn't fit and pops out. What should I do?

March 20, 2016
Asked By:Blue.Butterfly in Toronto, ON

I'm required to change my trays every week. I haven't had a problem until putting in upper tray 50; it doesn't fit and pops out from my right last molar. The tray for that molar is too big. I called my dentist and they got intouch with the ortho they work with who is in charge of my treatment and he recommended I squeeze the tray close with my fingers. It still opens again after a while. It seems it's just that one tooth that has their problem. What should I do?