Dental chair is made of ABS plastic shell never deformed fade, nontoxic, fully computerized automatic control; it has a stable structure, beautiful appearance, convenient operation, high reliability, is a modern dental clinic ideal upgrade product. Dental chair using low Silent DC motor drives, full computer control, master control and foot switch with two control points. Control switch is designed to meet people's thinking and behavior, greatly improve the safety index of the machine to facilitate physicians accurate and fast work. Seat and backrest with the overall seamless bubble technology. Treatment machine parts, using the new long-life lamp arm; novel oral cold light; overall ceramic gargle glenoid basin; air-lock balance arm to the local Tim-enriched; high and low cell phone using an independent water supply system that can effectively extend the phone's life. Phone powerful, simple structure, convenient operation, cooling water increases the anti-suction device, preventing cro