Metapaste Plus is a water-based calcium hydroxide paste for inter-appointment root canal dressing. Its water-based formulation provides excellent flow and canal penetration, strong antimicrobial action, and easy removal at the next appointment. Premixed and syringe-delivered for direct application. Distribution limited to the United States. Clinical Pathway Reference Explore the clinical context for this product in the RootRadar pathway on Disinfection Support and Irrigation & Activation. .rr-ib{background:linear-gradient(135deg,#f0f9fb,#e8f4f7);border:1px solid #b6dde8;border-left:5px solid #1e6f7d;border-radius:16px;padding:26px 30px;margin:28px 0;}.rr-il{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:#1e6f7d;font-weight:800;margin:0 0 10px;}.rr-ib p{font-size:16px;line-height:1.78;color:#17384a;margin:0;font-style:italic;} Radar Insight Water-based calcium hydroxide pastes offer superior canal penetration compared to oil-based formulations — the vehicle matters as much as the active ingredient. A water-based carrier allows the paste to flow into lateral canals and apical anatomy, maximizing contact with residual biofilm. Easy removal at the next appointment is not a minor convenience — retained calcium hydroxide can interfere with sealer adhesion and obturation quality if not fully eliminated before obturation.