Used from the 17th century bow-type dental drill began, to the 18th century in the winding-style "Sen Mayi" Dental drill, foot-mid-19th century advent of dental drill, the middle has experienced 300 years of history. Early dental chair lift, steering are mechanical in nature, operate very inconvenient. Phone cone is generated in the foot-operated dental drill, the clinical application of the front straight and bend the front began. Dental chair at the configuration and functions are only available for extraction and to do simple repair, dental caries treatment purposes. Even today, some remote areas are still using this machine.
Since then, as electricity use significantly increased the speed and torque drill. Early 20th century, there have been three curved wall arm dental drill, the speed up to 4000r/min, some even up to 10000r/min speed, and now we are still widely used rope wheel drive three-bent-arm dental drill is their derivatives.
20 twenties, emerged an integrated approach in dental treatment machine, and quickly widely used in the wealthy class. Dental Unit is only a single function in the dental chair developed on the basis of an integrated device, in addition to the rope round dental drill three curved arm, but also with oral lights, mouthwash, a spittoon, instrument tray, water gun, aspirator devices and foot control switches and other devices, integrated treatment unit was again the use of improved dental drill performance and sanitation. This mechanical drive from the dental chair up to the motor level, water cannon and aspirator device driven by compressed air pump, this electric air pump noise and large, poor stability, but it features a comprehensive treatment greatly improved. But even 10000r/min terms of the speed of the motor speed is higher, and they can only provide 0.8m / s cutting speed, play cutting, cutting and grinding operation, the patient remains unwell.
High-speed mobile phone appeared in the fifties of last century, after several development, high-speed turbine speed reached to transfer 300,000 of its good safety and comfort of dentists and patients will soon be commonly accepted. Modern dental equipment to pneumatic power control as a main piece with electric dental chair, not only with cutting grinding of high speed mobile phone, also equipped with cleaning teeth, light curing device and the vacuum suction system, as a more complete dental equipment portfolio.
1. Modern dental chair Traditional dental chairs generally refers to the price of 1 million or less simple dental treatment machine. Limited in terms of rural and individual clinics are more common. More old-fashioned chair without a doctor and assistant general seats, some even without a spittoon, aspirator device, has become a real "dental chair." While these relatively simple chair, but can meet the needs of general dental treatment. In China's vast rural and urban communities, individual dental chair dental clinic that still has the market. According to the survey show that total sales in 1999 accounted for 80% of the survey, while declining, still accounts for around 72% of total demand.
"People first" dental chair design is the design concept of the rise in recent years, mainly to convenience, comfort, safety and health aspects of the design objectives.
Convenience, comfort, safety aspects: the high chair and general operating procedures with a variety of personalized, individual physicians can rely on habit, set a different treatment location (upper and lower jaw teeth and rescue bits), and can do process of storage. Chair of the control part, from the beginning of the machinery, electric control up to the valve control, solenoid valve control, advanced control stage; priced at 70,000 yuan or more in the high chair usually comes with automatic console, chair position adjustment back and knee joints can be integrated campaign, up, down, tilt adjustment. Position more suitable to the treatment of patients; and doctors with non-slip seat and multi-function foot control device, the doctor may be required in the course of treatment with their feet control, no need to stop the equipment in case of operation to achieve the water, air guns switch action. In the high-end treatment unit comes with a variety of steering Designed, powe rful bass, vacuum pumps, liquid can separate large suction noise. Shanghai Dental Medical Instrument victory in the domestic original designed for children AM6010 models, the entire computer electric chair a minimum height of only 43cm, for small to provide a convenient treatment of patients.
In the health, environmental protection: According to epidemiological data show that the existence of oral diagnosis and treatment of serious cross-infection. Dentists hepatitis B infection is 3-6 times the general population, a dentist is 25.8% positive rate of HBV, HBV contaminated dental handpiece of the total positive rate was 62%. Therefore, to prevent cross-infection of dental equipment, dental chair design is an important factor to consider.
Dental chair equipment in the mobile phone is the most basic and most important configuration. At present, the domestic use of high-speed turbines imported brands NSK, DN, BienAir and W & H, etc., speed up 350000r/min (0.25Mpa time), usually resistant to conventional fast 135 120 and high temperature, high pressure sterilization. Way of the bur wrench for handling needles and pins button for two; Interface sub-international standard two hole, four-hole type. Low-speed mobile phone general points straight, two elbow, constant velocity rotation with the air motor is 1:1.
When the phone stopped rotating, due to inertia, will produce an inspiratory flow back, causing cuts and pollutants inhaled broken cell phone, which is oral health in an important way to cross-infection. So anti-smoking phone device back into an important high-end product configuration, the current chair of the anti-high-end mobile phone back to smoking is mainly Japanese and German patents.
In the high-end products equipped with interchangeable discrete water supply, disinfection and regular cleaning of automatic health systems; Shanghai Dental Instruments Factory latest CS1000A-based comprehensive dental treatment machine, the PU elastomer frame, paint using Nano technology, mouthwash Yu, oral lamps and lamp cover health site also has anti-bacterial function.
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