Modern dental chairs are commonly found in rural towns and individual clinics with limited conditions. The more old-fashioned chairs generally do not have seats for doctors and assistants, and some do not even have sputum cups or saliva ejectors, becoming a true "dental chair." Although these chairs are relatively simple, they can satisfy the general needs for dental treatment. In rural areas and urban communities, individual dental clinics still have a considerable market for these dental chairs. According to a survey conducted in 1999, they accounted for 80% of total sales, and even though this number has decreased in recent years, it still accounts for about 72% of the total demand. The "people-oriented" design concept for dental chairs has become popular in recent years, where dental surgery chairs are mainly designed with convenience, comfort, safety, and hygiene in mind.
High-end dental surgery chairs generally have various personalized operation procedures, which can be set at different treatment positions (upper and lower jaw teeth and emergency positions) according to the doctor's personal habits and stored with the appropriate programs. The control part of the chair has advanced from early mechanical and electric control to high-level control, such as air valve control and electromagnetic valve control. Middle to high-end chairs usually come with a fully automated control panel that allows for comprehensive movement adjustment of the backrest and knee joint and allows for adjusting the chair's rising, falling, and tilting. This makes the patient's position more suitable for treatment. The chair is also equipped with an anti-slip doctor's seat and a multi-functional foot pedal control device, which enables the doctor to control the water and airguns as needed during treatment without stopping the operation of the instrument. High-end treatment tables also come with various turnable cold lights, powerful low-noise vacuum suction pumps that can separate gas and liquid, ensuring high suction performance while reducing noise.
Epidemiological data shows that there are serious problems with cross-infection during oral diagnosis and treatment. The infection rate of hepatitis B among dentists is 3-6 times higher than that of the general population, and the positivity rate of HBV in dentists is 25.8%, while the total positivity rate of HBV contamination in dental mobile phones is 62%. Therefore, preventing cross-infection of dental equipment is an important factor to consider in the design of dental chairs. When the mobile dental phone stops rotating, due to inertia, it produces a backdraft that sucks in debris and pollutants, which is an important way for cross-infection in oral medicine. Therefore, the anti-backflow mobile device has become an important configuration of high-end products. Middle to high-end products come with a replaceable separate water supply, disinfection, and timed flushing automatic hygiene system. In addition, in dental surgery chairs, PU elastic frame, paint using nanotechnology, rinse cup, oral lamp and shade have antibacterial and health care functions.