Experts on Invisalign, my upper set of braces are damaged a little, please help?!

I started wearing them in late '04 and I haven't been to the dentist in a while!. I finished wearing all stages of sets, seven for upper and twenty-seven for lower!. My upper set of braces cracked a little between the two front teeth frame!. What can I do until the next time I see my dentist, is there a way to fix it!? Take your time to explain, thanks!.Www@Answer-Health@Com

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