From Traditional to Smart: The Evolution of the Dental ChairThe evolution of dental chairs reflects major changes in modern dental treatment. Early mechanical dental chairs provided basic positioning but offered limited comfort, efficiency, and integration. The later transition to electric control made chair adjustment easier, while modern intelligent dental chair units now combine electric positioning, memory functions, ergonomic design, dental lighting, water and suction systems, heating and massage functions, and infection-control features. Guangdong Yadeng’s AD-S and YD-A series represent this shift toward integrated dental treatment equipment. By improving dentist workflow, patient comfort, equipment coordination, and long-term maintenance, modern dental units help clinics move beyond basic treatment and provide a more efficient, comfortable, and professional dental care experience.