Vivera retainers: why do I need a rescan every time I replace them?
I’ve been in my retainers for about 5 years now, after finishing my aligner treatment. I wear my retainers every night without fail. My teeth are still straight but over time I can tell there’s a little bit of shifting. So when I request replacement retainers (Vivera) I’m told I need a new scan for them to order from. Why?? Wouldn’t we want the retainers to be in the shape I had right when my teeth were perfect out of my aligner treatment? Why go by a scan where they might have shifted a little and aren’t quite as straight as they originally were? This makes no sense to me. When I asked my orthodontist about this, they agreed but told me that it’s Invisalign’s policy to only replace the aligners with a new scan despite them having the information to create retainers from my original scans. Or is my orthodontist feeding me a line? And paying 500.00 per retainer… ugh. I’m retired and this is getting expensive.