I am on tray 6 of 11 (top) and 21 (bottom), with 2 attachments (top) and 5 (bottom). I am 62 years old, and had braces many years ago. My orthodontist never mentioned refinements and I only found out about them through research. Are refinements usual? I am a bit concerned - my trays fit fine, although a little tight at first, but I see little change. Thanks!
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