Profile: Angelus Industria de Produtos Odontologicos S/A provides innovative dental solutions, based on science and technology. We offer metalpin for the fabrication of temporary crowns. Opak is a light-cured masking resin for the covering of dark dentin, metal and carbon fiber posts. Our procuct pinjet is a polycarbonate post for intra-root impression and/or build-up. Silanes are adhesion promoters between organic and inorganic substances. As bi-functional molecules, their silica radicals unite with the silica in the restorative materials and their organic radicals co-polymerize with the organic matrix of the resin cements. They can also be called ceramic primers or bonding/coupling agents.