1. Electric dental instrument (10) for cleaning teeth, comprising: a node (12) of the handle / receiver comprising a system for creating a fluid / air emission stream assembly (14) of the nozzle, through which liquid directed emissions / air, wherein the node nozzle includes an output member (20) for directing fluid emission / air to selected teeth areas, wherein the nozzle assembly and pen / receiver comprises combining a mating structure, wherein the nozzle comprises an elongate tubular member (30) and pen / VC receiver Luciano an opening (32) formed by the inner wall at its upper end, wherein the tubular member has two sets of opposing side surfaces (34, 36, 38, 40), the inner wall of the handle / receiver has a respective lateral surface, with two opposite sides in one set are slightly curved side surfaces and two opposite sides in the other set are flat and parallel to each other, with one set of side surfaces includes a transverse groove (42, 44) or inclined surfaces st, or finger element near its lower end, and the handle / receiver includes a mating transverse protrusion (46, 48) on its inner wall adapted to mate with each other to prevent coming off of the nozzle member with the handle / receiver during operation of the tool but to ensure its easy to snyatiyapolzovatelem zameny.2. Dental tool according to Claim. 1, wherein the tubular member and pen / receiver is configured to provide a tight fit, when they are adjacent to each other (43) for under-1. Электрический стоматологический инструмент (10) для очистки зубов, содержащий:узел (12) ручки/приемника, включающий в себя систему для создания потока выбросов жидкости/воздухаузел (14) сопла, через который направляются выбросы жидкости/воздуха, причем узел сопла включает в себя выходной элемент (20) для направления выбросов жидкости/воздуха к выбранным областям зубов, при этом узел сопла и ручка/приемник включают в себя объединенную сопрягающуюся конструкцию, причем сопло включает в себя удлиненный трубчатый