Permatter® is inventor of the "Dual Surface Lingual Retainer" approach. Last updates are focused to develop advanced surface technology for orthodontic retention treatment. Permatter® V.3.5 brings SuperHydrophobic and SuperHydrophilic surfaces together. SuperHydrophilic surfaces show 47% better bonding properties; SuperHydrophobic surfaces prevent biofilm accumulation, at least 60% less than any other conventional orthodontic retainer.Thanks to Advanced Laser Texturing and Atmospheric Plasma Treatment.