MARK3 Core Build-Up is a dual cure, high radiopaque flowable micro-hybrid composite material with nano particle(nano-zirconium, nano-calciumfluoride) for core build-up and cementation of posts. Due to its excellent mechanical properties, final crown preparation can be carried out more precisely. MARK3 Core Buid-Up is also suitable for cementing of crowns and bridges, inlays and onlays if there is no high estheic requirements.