Vivera, plastic, or hawley? I completed invisalign treatment with a general dentist about 2 years ago. Great results. He insisted I get the Vivera retainers and replace them every few months. The dentist has since gone out of business (completely abandoned his practice), so I have no idea how to get new retainers. My new dentist suggested a hawley retainer, but he reports that he doesn't have much experience with invisalign. Please help!
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