The first concave-shaped polishing brush allowing simpler and quicker production of smooth surfaces. The concave shape of the brush is efficient on all tooth surfaces, including less accessible surfaces such as interproximal spaces and occlusal fissures. The bristles are embedded with polishing particles (silicon carbide) that polish the surface to an extremely high lustre, therefore a proprietary paste is not necessary. Efficient gloss polish for restorations made of composite compomer, resin modified glass ionomer or ceramics as well as for prophylactic treatment.