In an electric motor for use in a dental, dental-medical or dental-technical handpiece, having a rotatably mounted rotor and a stator surrounding the rotor, the stator is surrounded by a sheathing having an inner sleeve, on the outside of which there are arranged functionally relevant components of the stator, for example stator winding(s), return plates, and/or contact pins, and an outer sleeve embedding the inner sleeve with the functionally relevant components.