A powder-cleaning device for dental use is provided. It has a proximal arm configured for attachment to a source of compressed air； a distal arm having a distal end configured for dispensing a mixture of air and powder to a patient a turbulence chamber, which has a loading side door configured for insertion of an abrasive powder into the chamber according to a loading direction substantially orthogonal to a plane defined by the prevailing extension s of the arms (DP, DD). The turbulence chamber is interposed between the proximal arm and the distal arm and in fluid communication with both in such a way that the compressed air can be adducted in the turbulence chamber through the proximal arm and a mixture of air and powder can escape therefrom within the distal arm. A controller for compressed air flow is also arranged on the proximal arm upstream of the turbulence chamber.
