1.Electric Modern dental chair control by electric motor continuous with a low voltage, with stable and guaranteed performances, perfectly avoiding damage to turbine and tooth cleaning instrument which shudder caused by air pressure andwater. 2.Electric Modern dental chair come with injected plastic dental chair unit , compared to market products themselves, whose intensity was 9 times more than the other and the warp and brechar defects in the plastic coating have been used to prolonged be avoided. 3.the Electric Modern dental chair unit have a reactive structure between backrest and cushion, ensuring not have full feeling depressed patient in the back and buttock during processes be ascended and lowered, as well as launch and retrocederse.