The ceramic bracket series, "Crystalline®", is the first translucent ceramic bracket ever, pioneered, developed, and introduced into the world markets by Tomy. This technology has gone through decades of further research which has borne fruit as "Crystalline® V (Five)", with a silica liner in the arch-wire slot. As a result of R&D efforts, the Tomy R&D team concluded that silica liner has better sliding mechanics than a conventional metal bracket. Moreover, its dimpled base generated by NSB (non-silanated base) processing has been proven to be safe in examination of the debonding records of about 2,000,000 brackets. This brand of confidence and safety, "Crystalline®", is a must item especially for adult patients concerned with esthetics.