After finishing, I had a Vivera retainer made. Vivera comes as 3 sets, and I only have 1 set left. I said it said the Vivera itself has an expiration date? of 2 years, so I asked what happens after 2 years, and they said it was fine ㅡㅡ Still, it has been holding up well, but aftercare seems lacking. When I asked them to make Vivera again, they said the records would be gone, and I wondered if all dental clinics are like this.
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