Why is a Invisalign Refinement Needed if Teeth Fit Final Tray?
If technically the invisalign system works by slowly changing the shape of the tray so that the teeth may fit on each position and shape of the tray, and the final tray is a perfect smile and that tray perfectly fits, how come a refinement is needed ?
Why refinements with Invisalign?
Why do I need refinement
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