Oral Twin Anterior Matrice Matrix for Premolar Molars Polyester Matrices Matrix ends are covered with a special glue layer for side-to-side conjunction No matrix retainer required Alcohol immersion disinfection,disposable use,can not be disinfected under high temperature and high pressure Installation of self-adhesive matrix ,Install matrices Remove red protective layer from matrix side Stick alued matrix sides with each other Polyester Matrices For Premolar /Molar /Anterior Teeth