980nm Diode Teeth Whitening Dental Laser Equipment (VH5)TheoryLaser teeth whitening theory: A bleaching ... improve: senile or hereditary yellow teeth, black teeth, tetracycline teeth, dental fluorosis, exogenous pigment teeth (Coffee, tea, and tobacco stains deposition ... Products: 808nm diode laser, Fractional CO2 Laser, Nd: YAG Laser, Dental Laser, IPL, ELIGHT, SHR, Cavitation, Vacuum, RF, Oxygen jet ...