Profile: Sigma Dental Systems - Emasdi GmbH offers interdental brushes, dental floss dispenser, matrix dispenser & tongue cleaner. Ragy interdental brushes are characterized most notably by the superior quality of the rounded filaments, ensuring the free movement of the brushes in the interdental spaces. The steel wire is plastic-coated and therefore does not cause galvanic shock. Our matrix stainless steel dispenser is designed for professional use in dental practice. The matrix can be removed totally hygienically without coming into contact with the dispenser. It can be disinfected, sterilized and is also available as a dental floss dispenser.