Bio-Active Anti-Biofilm 3D Aligner Resin

A specialized 3D-printing resin for clear aligners infused with chitosan nanoparticles to reduce bacterial adhesion and Streptococcus mutans biofilm biomass — the main hygiene weakness of direct-printed aligners. A new critical review confirms that leading direct-print resins are non-cytotoxic and BPA-free, providing a safe base chemistry, while flagging biofilm adhesion as a critical open problem the category has not solved. The product's value proposition is antimicrobial performance for high-caries-risk patients, not force delivery or mechanical tuning.