Tricalcium silicate, the main constituent of Portland cement, hydrates to produce crystalline calcium hydroxide and calcium-silicate-hydrates (C-S-H) nanocrystalline gel. Tricalcium silicate-based cement, with tantalum oxide has no cytotoxic effect. Tricalcium silicate-based materials are growing in popularity for dental procedures. The use of tricalcium silicate as an odontotropic preparation makes it possible to create a hermetic crown restoration with a high degree of adhesion. The use of the tricalcium silicate as a material for direct pulp capping promotes more active regeneration processes.