DENTIST CHAIR FOR MUSCULOSKELETAL DISORDER PREVENTION

摘要

The present utility model describes a dentist chair that reduces the risk of Musculoskeletal Disorder (MSD). The dentist chair comprises a wheeled base, a support post protruding upwards from the base, a seat structure, an operating device to shift front portion between a lifted position and a lowered position, a back rest extending upwardly from said seat structure and provided with a head rest which is secured in fixed relation to the upper end of the back rest, wherein the angle of posture between upper and lower leg created during usage of the chair is 112.6ø.