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This invention describes a way to create decorative, durable stickers for dental aligners or similar mouth appliances. It involves printing designs using special UV-cured ink on a thin, flexible film, then adding an adhesive layer. The claims specifically focus on a method for making these carriers to stick to the plastic shell of aligners, using colorants that are safe to eat or biocompatible.
Why it matters: The core challenge lies in the biocompatibility and durability of materials for oral use. Advances in food-grade or medical-grade UV-curable inks and adhesives since 2023 could make this method safer, more durable, and more practical for widespread application in dental appliances.
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