Abstract: Objective: To investigate the patients’ satisfactory degree about their treatment, to compare the clinical effects of Beyond Cold Light Whitening on tetracycline teeth, dental fluorosis and yellow teeth, and to evaluate the usefulness of Vitapan Classical Shade Guide in judging effects of tooth whitening. Methods: 57 patients who underwent Beyond Cold Light Whitening treatment were collected in June 2008 to January 2014. The treatment effects were evaluated by Vitapan Classical Shade Guide and the patients’ satisfactory degree were evaluated by Patients Self-Assessment Scale. Results: The mean of color gradation change by Vitapan Classical Shade Guide was 0.85±1.91 in tetracycline teeth, 3.69±2.91 in dental fluorosis, 4.61±2.35 in yellow teeth, and the mean of scores by Patients Self-Assessment Scale was 6.69±1.03 in tetracycline teeth, 7.42±1.42 in dental fluorosis, and 8.00±1.24 in yellow teeth. Both of them in tetracycline teeth were significantly lower than dental fluorosis and yellow teeth. Conclusion: The whitening effects of tetracycline teeth by Beyond Cold Light Whitening were limited. The traditional way of evaluating the clinical effects of Beyond Cold Light Whitening by Vitapan Classical Shade Guide should be improved.