Defend Temporary Crown & Bridge is a bis-acryl composite for chairside provisional restorations. It is fast and accurate, especially when used in conjunction with a quality vinyl polysiloxane impression material such as Defend Super Hydrophilic VPS (Monophase). It is available in 6 shades: A1, A2, A3, A3.5, B1, and Bleach BL. All are delivered in 76g (50mL) cartridges designed to fit on a 10:1 style automix gun.