Currently, in your office or home, using a computer desk work time to have increased. Attitude tends to be bad and are concentrated in the desk, may be due to the distortion of the posture of this desk, causing various symptoms of the body off balance. There is a (Tooth Contacting Habit) TCH to one of its symptoms. TCH will be many cases in the state to develop into a stiff neck and temporomandibular joint disease and a bad attitude, leads to distortion in the pelvis, broken in body and mind balance also be accompanied by mental stress, easy to contact with more natural teeth. From these things, that as a remedy for preventing and TCH, to keep the correct posture of desk work, leaving difficult burden on the body. In this paper, we consider a system for using a Web cam and a computer, to keep the position of the pelvis during desk work correctly.
