Am on second aligner. First felt like it fit perfectly. Second feels looser (easier to take on and off). There is a small gap between one of my front teeth and the aligner. Not sure if this is okay or a sign I didn't wear last aligner enough. Last aligner was worn for 2.5 weeks for 21hrs (although 2 days they were worn for 18 hrs only). Not sure if I should carry on with this aligner or go back to first one and rewear that incase it didn't work properly?
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