The invention relates to a polisher nozzle (4) for dental treatment, comprising a body (5) extending between a proximal portion (8) for connection to a handpiece (6) and a distal portion (10), the body having a first channel (14) for delivering a dental polishing powder (Fa/p) and a second channel (16) for delivering a fluid (Ff), two channels each opening out to at least one respective orifice (18, 20) opening out in the vicinity of the free end (12) of the distal portion (10) wherein the free end (12) of the distal portion forms a spatula (22) extending in line with the distal portion (10) downstream from said orifices (18, 20), the spatula (22) being arranged at a distance from said orifices in such a manner as to disturb at least in part the flow (Fs) formed by the dental polishing powder combining with the fluid leaving said orifices.本發明係關於一種用於牙科治療之研磨機噴嘴(4),其包括在用於連接至一機頭(6)之一近端部分(8)與一遠端部分(10)之間延伸之一主體(5),該主體具有用於遞送一牙科研磨粉末(Fa/p)之一第一通道(14)及用於遞送一流體(Ff)之一第二通道(16),兩個通道各自貫通至至少一個各別孔口(18、20),該等各別孔口貫通於該遠端部分(10)之自由端(12)附近,其中該遠端部分之該自由端(12)形成在該等孔口(18、20)下游與該遠端部分(10)一致地延伸之一刮刀(22),該刮刀(22)以至少部分地干擾藉由離開該等孔口之該牙科研磨粉末與該流體組合而形成之流(Fs)之一方式而配置於距該等孔口之一距離處。